SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                    FORM 10-Q
Mark one

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
     THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended October 31, 2003

                                       or

[_]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934

For the transition period from _______________ to ______________

                          Commission File Number 1-9974

                               ENZO BIOCHEM, INC.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

NEW YORK                                                        13-2866202
- -----------------------------                                ----------------
(State or Other Jurisdiction                                 (I.R.S. Employer
of Incorporation or Organization)                           Identification No.)

60 EXECUTIVE BLVD., FARMINGDALE, NEW YORK                           11735
- -----------------------------------------                       -----------
(Address of Principal Executive office)                          (Zip Code)

(631-755-5500)
- -----------------------------
(Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

COMMON STOCK, $0.01 PAR VALUE                  NEW YORK STOCK EXCHANGE
- -----------------------------                  -----------------------
       (Title of Class)              (Name of Each Exchange on which Registered)

Securities registered pursuant to Section 12(g) of the Act:

                                      NONE

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  has
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days.

                               [X] Yes      [ ] No

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined in Exchange Act Rule 125-2).

                               [X] Yes      [ ] No

As of November 25, 2003 the  Registrant  had  30,036,300  shares of Common Stock
Outstanding.




                               ENZO BIOCHEM, INC.

                                    FORM 10-Q

                                October 31, 2003


                                      INDEX




                                                                           PAGE
                                                                          NUMBER

PART  I - FINANCIAL INFORMATION
- -------


Item 1.   Financial Statements

          Consolidated Balance Sheet - October 31, 2003 (unaudited)
            and July 31, 2003                                                  3

          Consolidated Statement of Operations
            For the three months ended October 31, 2003 and 2002 (unaudited)   4

          Consolidated Statement of Cash Flows
            For the three months ended October 31, 2003 and 2002 (unaudited)   5

          Notes to Consolidated Financial Statements                           6

Item 2.   Management's Discussion and Analysis of
            Financial Condition and Results of Operations                      9

Item 3.   Quantitative and Qualitative Disclosures About Market Risk          13

Item 4.   Controls and Procedures                                             13

Part II - Other Information

Item 1.   Legal Proceedings                                                   14

Item 6.   Exhibits and Reports on Form 8-K                                    17


                                       2



                                ENZO BIOCHEM, INC
                         PART 1 - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

                           CONSOLIDATED BALANCE SHEET

                                                        October 31,    July 31,
                                                           2003          2003
                                                        (unaudited)    (audited)
                                                         ---------    ---------
                                ASSETS

Current assets:
  Cash and cash equivalents ..........................   $  63,446    $  63,268
  Marketable securities ..............................      15,179       15,154
  Accounts receivable, less allowance for
    doubtful accounts ................................      16,643       17,266
  Inventories ........................................       3,322        3,422
  Prepaid expenses ...................................       2,007        2,233
  Deferred taxes .....................................       1,284        1,014
  Prepaid taxes ......................................         810          542
                                                         ---------    ---------
Total current assets .................................     102,691      102,899
Property and equipment, at cost less accumulated
  depreciation and amortization ......................       2,242        2,200
Goodwill .............................................       7,452        7,452
Deferred patent costs, less accumulated amortization .       2,995        3,166
Other ................................................         165          161
                                                         ---------    ---------
                                                         $ 115,545    $ 115,878
                                                         =========    =========

                      LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Trade accounts payable .............................   $   2,097    $   1,321
  Accrued legal fees .................................       1,681        1,915
  Other accrued expenses .............................         435          551
  Accrued research and development expenses ..........          --          453
  Accrued payroll ....................................         621          703
  Deferred rent ......................................         261          232
                                                         ---------    ---------
Total current liabilities ............................       5,095        5,175

Deferred taxes .......................................       1,156        1,235
Deferred rent ........................................          --           87

Commitments and contingencies
Stockholders' equity:
  Preferred Stock, $.01 par value; authorized
    25,000,000 shares; no shares issued
    or outstanding
  Common Stock, $.01 par value; authorized
    75,000,000 shares; shares issued and
    outstanding: 30,007,300 at October 31, 2003
    and 29,975,100 at July 31, 2003 ..................         300          300
  Additional paid-in capital .........................     199,361      199,082
  Accumulated deficit ................................     (90,239)     (89,916)
  Accumulated other comprehensive loss ...............        (128)         (85)
                                                         ---------    ---------
Total stockholders' equity ...........................     109,294      109,381
                                                         ---------    ---------
                                                         $ 115,545    $ 115,878
                                                         =========    =========

                                       3



                               ENZO BIOCHEM, INC.
                CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)

                                                           Three Months Ended
                                                               October 31,
                                                            2003          2002
                                                          -------       -------
                                                          (In thousands, expect
                                                             per share data)

Revenues:
  Research product revenues ...........................    $2,760       $10,411
  Clinical laboratory services ........................     7,513         6,945
                                                          -------       -------

                                                           10,273        17,356
Costs and expenses:
  Cost of research product revenues ...................       384         1,291
  Cost of clinical laboratory services ................     2,322         2,099
  Research and development expense ....................     1,932         1,827
  Selling expense .....................................     1,019         1,460
  General and administrative expense ..................     2,390         2,006
  Provision for uncollectible accounts receivable .....     2,372         2,168
  Legal expense .......................................       956           742
                                                          -------       -------
                                                           11,375        11,593
                                                          -------       -------

Income (loss) before interest income and provision
  for taxes on income .................................    (1,102)        5,763
Interest income .......................................       286           284
                                                          -------       -------
Income (loss) before provision for taxes on income ....      (816)        6,047
Benefit (provision) for taxes on income ...............       493        (2,359)
                                                          -------       -------

Net (loss) income .....................................      (323)       $3,688
                                                          =======       =======

Net income (loss) per common share:
  Basic ...............................................     ($.01)        $0.12
                                                          =======       =======
  Diluted .............................................     ($.01)        $0.12
                                                          =======       =======

Denominator for per share calculation:
  Basic ...............................................    30,006        29,885
                                                          =======       =======
  Diluted .............................................    30,006        30,492
                                                          =======       =======

                                       4



                                ENZO BIOCHEM, INC
                      CONSOLIDATED STATEMENT OF CASH FLOWS

                                                             Three Months Ended
                                                                October 31,
                                                               2003       2002
                                                             -------    -------
                                                               (In Thousands)
Cash flows from operating activities:
  Net income (loss) ......................................   $  (323)   $ 3,688
  Adjustments to reconcile net income (loss) to
       net cash provided by operating activities:
    Depreciation and amortization of property and
       equipment .........................................       253        237
    Amortization of deferred patent costs ................       214        225
    Provision for uncollectible accounts receivable ......     2,372      2,168
    Deferred rent ........................................       (58)       (49)
    Changes in operating assets and liabilities:
      Accounts receivable before provision for
         uncollectible amounts ...........................    (1,749)    (2,951)
      Inventories ........................................       100        800
      Prepaid expenses ...................................       226       (123)
      Deferred taxes .....................................      (321)        --
      Prepaid taxes ......................................      (268)     1,888
      Trade accounts payable and other accrued expenses ..       660          2
      Accrued research and development expenses ..........      (453)        --
      Accrued legal fees .................................      (234)       370
      Accrued payroll ....................................       (82)        99
                                                             -------    -------
      Total adjustments ..................................       660      2,666
                                                             -------    -------

             Net cash provided by operating activities ...       337      6,354
                                                             -------    -------

Cash flows from investing activities:
  Capital expenditures ...................................      (295)      (186)
  Patent costs deferred ..................................       (43)       (77)
  Purchase of marketable securities ......................       (96)        --
  Security deposits ......................................        (4)        (1)
                                                             -------    -------

    Net cash used in investing activities ................      (438)      (264)
                                                             -------    -------

Cash flows from financing activities:
  Proceeds from the exercise of stock options ............       279         23
                                                             -------    -------
    Net cash provided by financing activities ............       279         23
                                                             -------    -------

Net increase in cash and cash equivalents ................       178      6,113
Cash and cash equivalents at the beginning
  of the period ..........................................    63,268     67,135
                                                             -------    -------
Cash and cash equivalents at the end of the period .......   $63,446    $73,248
                                                             =======    =======

                                       5



                               ENZO BIOCHEM, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                October 31, 2003
                                   (Unaudited)

NOTE 1. BASIS OF PRESENTATION

The consolidated  financial statements are unaudited and reflect all adjustments
(consisting only of normal recurring  adjustments)  which are, in the opinion of
management,  necessary for a fair  presentation  of the  financial  position and
operating results for the interim periods. The consolidated financial statements
should be read in conjunction with the consolidated financial statements for the
year ended July 31, 2003 and notes  thereto  contained in the  Company's  Annual
Report on Form 10-K filed  with the  Securities  and  Exchange  Commission.  The
results of  operations  for the three  months  ended  October  31,  2003 are not
necessarily  indicative of the results to be expected for the entire fiscal year
ending July 31, 2004.

STOCK BASED COMPENSATION PLANS

The Company  accounts for stock option grants to employees under the recognition
and measurement  principles of APB Opinion No. 25,  "Accounting for Stock Issued
to  Employees,"  and  related  Interpretations.  Under APB No. 25,  because  the
exercise  price of the Company's  employee stock options equals the market price
of the  underlying  stock on the  date of  grant,  no  compensation  expense  is
recorded.

Pro forma  information  regarding net loss applicable to common  stockholders is
required by FASB  Statement No. 123 ("SFAS 123"),  "Accounting  for  Stock-Based
Compensation,"  which also requires that the information be determined as if the
Company has  accounted for its stock options under the fair value method of that
statement.  For purposes of pro forma  disclosures,  the estimated fair value of
the options is amortized to expense over the options' vesting period.

In December  2002, the FASB issued  Statement No. 148 ("SFAS 148"),  "Accounting
for Stock-Based  Compensation - Transition and Disclosure."  SFAS No. 148 amends
SFAS No. 123, "Accounting for Stock-Based  Compensation," to provide alternative
methods of  transition  to SFAS No.  123's fair value method of  accounting  for
stock-based  employee  compensation.  SFAS No. 148 also  amends  the  disclosure
provisions of SFAS No. 123 to require  disclosure in the summary of  significant
accounting policies of the effects of an entity's accounting policy with respect
to stock-based employee  compensation on reported net income. While SFAS No. 148
does not amend SFAS No. 123 to require  companies to account for employee  stock
options using the fair value method,  the disclosure  provisions of SFAS No. 148
are  applicable  to  all  companies  with  stock-based  employee   compensation,
regardless  of whether they account for that  compensation  using the fair value
method of SFAS No. 123 or the intrinsic  value method of APB No. 25. The Company
adopted SFAS No. 148 effective January 31, 2003.

                                       6



                               ENZO BIOCHEM, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                October 31, 2003
                                   (Unaudited)

The following table  illustrates the effect on net income and earnings per share
if the Company had applied the fair value recognition provisions of SFAS No. 123
to stock-based compensation for the three months ended October 31, 2003 and 2002
(in thousands, except per share data):


                                                           Three Months Ended
                                                               October 31,
                                                            2003         2002
                                                          --------     --------
                                                              (In thousands,
                                                          except for share data)

Net income (loss), as reported                               $(323)      $3,688
Deduct: Total stock-based employee compensation
expense determined under fair value based method
for all awards                                                (814)        (705)
                                                          --------     --------

Pro forma net income (loss)                                $(1,137)      $2,983
                                                          ========     ========

Earnings (loss) per share:
   Basic - as reported                                       $(.01)        $.12
   Basic - pro forma                                          (.04)         .10

   Diluted - as reported                                     $(.01)        $.12
   Diluted - pro forma                                        (.04)         .10

The  Company  follows  the  provisions  of  Statement  of  Financial  Accounting
Standards ("SFAS") No. 128, "Earnings Per Share". The following table sets forth
the computation of basic and diluted earnings per share pursuant to SFAS 128.

                                                           Three Months Ended
                                                               October 31,
                                                            2003         2002
                                                          --------     --------
                                                              (In thousands,
                                                          except for share data)

Numerator:
   Net income (loss) for numerator for basic and
   diluted earnings per common share                         $(323)      $3,688

Denominator:
   Denominator for basic earnings per common
   equivalent share during the period                       30,006       29,885

Effect of dilutive securities
   Employee and director stock options and warrants             --(a)       607
                                                          --------     --------

Denominator for diluted earnings (loss) per common
   equivalent share and assumed conversions                 30,006       30,492
                                                          ========     ========

Basic earnings (loss) per share                              $(.01)        $.12
                                                          ========     ========

Diluted earnings (loss) per share                            $(.01)        $.12
                                                          ========     ========

(a)  The effect of 1,127,000 of dilutive  securities  have been excluded as they
     are anti-dilutive.

The Company  declared a 5% stock dividend on June 10, 2003 payable July 14, 2003
to  shareholders  of record as of June 30,  2003.  The shares and per share data
have been adjusted to retroactively  reflect this stock dividend for all periods
presented.

                                       7



                               ENZO BIOCHEM, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                OCTOBER 31, 2003
                                   (UNAUDITED)

Note 2--Segment Reporting

     The Company has two  reportable  segments:  research  and  development  and
clinical reference laboratories.  The Company's research and development segment
conducts research and development activities as well as selling products derived
from these activities.  The clinical reference  laboratories  provide diagnostic
services to the health care community.  The Company evaluates  performance based
on income before provision for taxes on income.  The accounting  policies of the
reportable  segments  are  the  same  as  those  described  in  the  summary  of
significant accounting policies. Costs excluded from income before provision for
taxes on  income  and  reported  as  other  consist  of  corporate  general  and
administrative  costs that are not  allocable  to the two  reportable  segments.
Management  of the  Company  assesses  assets on a  consolidated  basis only and
therefore, assets by reportable segment have not been included in the reportable
segments below.

     The  following   financial   information  (in  thousands)   represents  the
reportable segments of the Company:



                                                  RESEARCH AND      CLINICAL REFERENCE
                                                  DEVELOPMENT           LABORATORIES           OTHER                CONSOLIDATED
                                              -------------------    ----------------    -------------------     -------------------
                                              THREE MONTHS ENDED     THREE MONTHS ENDED  THREE MONTHS ENDED      THREE MONTHS ENDED
                                                 OCTOBER 31,            OCTOBER 31,         OCTOBER 31,             OCTOBER 31,
                                              -------------------    ----------------    -------------------     -------------------
                                                2003        2002      2003      2002       2003        2002        2003        2002
                                              -------     -------    ------    ------    -------     -------     -------     -------
                                                                                                     
Operating revenues:
Research product revenues .................    $2,760     $10,411        --        --         --          --      $2,760     $10,411
Clinical laboratory services ..............        --          --    $7,513    $6,945         --          --       7,513       6,945

Cost and expenses:
Cost of research product revenues .........       384       1,291        --        --         --          --         384       1,291
Cost of clinical laboratory services ......        --          --     2,322     2,099         --          --       2,322       2,099

Research and development expense ..........     1,932       1,827        --        --         --          --       1,932       1,827



Provision for uncollectible ...............        --          --     2,372     2,168         --          --       2,372       2,168
accounts
Other costs and expenses ..................       515         972     2,155     1,884     $1,695      $1,352       4,365       4,208
Interest income ...........................        --          --        --        --        286         284         286         284
                                              -------     -------    ------    ------    -------     -------     -------     -------


Income (loss) before (provision) benefit
  for income taxes on income ..............      $(71)     $6,321      $664      $794    $(1,409)    $(1,068)      $(816)     $6,047
                                              =======     =======    ======    ======    =======     =======     =======     =======


                                       8



Item 2.  Management's Discussion and Analysis of Financial Condition and Results
         of Operations

         The  following  discussion  of our  financial  condition and results of
operations  should be read in  conjunction  with our  financial  statements  and
related notes. This discussion contains forward-looking  statements that involve
risks and  uncertainties.  Our actual results could differ materially from those
anticipated  in  these  forward-looking  statements.  See  "Forward-Looking  and
Cautionary Statements." Because of the foregoing factors, you should not rely on
past financial results as an indication of future  performance.  We believe that
period-to-period   comparisons  of  our  financial   results  to  date  are  not
necessarily meaningful and expect that our results of operations might fluctuate
from period to period in the future.

         Enzo Biochem, Inc. (the "Company" or "Enzo") is a leading life sciences
and  biotechnology  company focused on harnessing  genetic  processes to develop
research  tools,  diagnostics  and  therapeutics.  Enzo also  provides  clinical
laboratory  services to the medical  community.  In  addition,  our work in gene
analysis  has  led  to  our  development  of  significant   therapeutic  product
candidates,  several of which are currently in clinical trials,  and several are
in preclinical studies.

         The business  activities  of the Company are performed by the Company's
three  wholly  owned  subsidiaries.  These  activities  are:  (1)  research  and
development,  manufacturing  and marketing of biomedical  research  products and
tools through Enzo Life  Sciences and research and  development  of  therapeutic
products  through  Enzo  Therapeutics,  and  (2)  the  operation  of a  clinical
reference laboratory through Enzo Clinical Labs. For information relating to the
Company's business segments,  see Note 2 of the Notes to Consolidated  Financial
Statements.

         The  Company's  source of  revenue  has been from the  direct  sales of
research  products of labeling  and  detection  reagents  for the  genomics  and
sequencing markets,  as well as through  non-exclusive  distribution  agreements
with  other  companies.  Another  source of revenue  has been from the  clinical
laboratory service market. Clinical laboratory services are provided to patients
covered by various third party insurance  programs,  including Medicare and self
payors for the services provided. The clinical laboratory is subject to seasonal
fluctuations in operating  results.  Volume of testing generally declines during
the summer months,  the year-end  holiday periods and other major  holidays.  In
addition,  volume  declines  due to inclement  weather may reduce net  revenues.
Therefore,  comparison of the results of successive  quarters may not accurately
reflect  trends or results for the full year. For the three months ended October
31,  2003 and 2002,  respectively,  approximately  27% and 60% of the  Company's
operating  revenues were derived from research  product sales and  approximately
73% and 40% were derived from clinical  laboratory  services.  Research  product
revenue from one major  distributor  represented  approximately 83% of the three
months ended in October 31, 2002, under a non-exclusive  distribution and supply
agreement. See "Item 1. Legal Proceedings."

Liquidity and Capital Resources

         At October  31,  2003,  our cash and cash  equivalents  and  marketable
securities totaled $78.6 million, an increase of $.2 million from July 31, 2003.
We had working  capital of $97.6  million at October 31, 2003  compared to $97.7
million at July 31, 2003.

         Net cash provided by operating  activities for the period ended October
31, 2003 was  approximately  $.3  million as  compared  to net cash  provided by
operating  activities of $6.4 million for the period ended October 31, 2002. The
decrease in net cash  provided by operating  activities  from the 2002 period to
the 2003 period was primarily due to the decreased net income in the 2003 period
based on the net loss in the 2003  period as  compared  to the net income in the
2002 period.

                                       9



         Net cash  used in  investing  activities  increased  approximately  $.2
million from the 2002 period, primarily as a result of an increase investment in
marketable securities and an increase in capital expenditures.

         Net cash provided by financing activities increased by $.3 million from
the 2002 period  primarily  as a result of the  increase  in  proceeds  from the
exercise of stock options.

         We  believe  that our  current  cash  position  is  sufficient  for our
foreseeable  liquidity  and capital  resource  needs,  although  there can be no
assurance that future events will not alter such view.

         Management  is not aware of any  material  claims,  disputes or settled
matters concerning third-party  reimbursements that would have a material effect
on our financial statements.

Critical Accounting Policies

General

         The Company's  discussion  and analysis of its financial  condition and
results of operations are based upon Enzo Biochem, Inc.  consolidated  financial
statements,  which have been prepared in accordance with  accounting  principles
generally  accepted in the United States.  The  preparation  of these  financial
statements  requires the Company to make estimates and judgments that affect the
reported amounts of assets, liabilities,  revenues and expenses; these estimates
and  judgments  also  affect  related   disclosure  of  contingent   assets  and
liabilities.  On an on-going basis,  we evaluate our estimates,  including those
related  to  contractual  allowance,   allowance  for  uncollectible   accounts,
intangible  assets  and  income  taxes.  The  Company  bases  its  estimates  on
experience and on various other  assumptions  that are believed to be reasonable
under  the  circumstances,  the  results  of which  form the  basis  for  making
judgments  about the  carrying  values of assets  and  liabilities  that are not
readily  apparent  from other  sources.  Actual  results  may differ  from these
estimates under different assumptions or conditions.

REVENUE RECOGNITION

                 Revenues  from  the  clinical   laboratory  are  recognized  as
services  are rendered  upon  completion  of the testing  process for a specific
patient.  The  Company's  revenue is based on  amounts  billed or  billable  for
services  rendered,  net of contractual  adjustments and other arrangements made
with third-party  payors to provide  services at less than  established  billing
rates. Revenues from research product sales,  exclusive of certain non-exclusive
distribution agreements, are recognized when the products are shipped.

         The Company has certain non-exclusive  distribution  agreements,  which
provide for  consideration to be paid to the distributors for the manufacture of
certain   products.   The  Company  records  such   consideration   provided  to
distributors under these non-exclusive distribution agreements as a reduction to
research product  revenues.  The revenue from these  non-exclusive  distribution
agreements are recognized when shipments are made to their respective  customers
and reported to the Company.

CONTRACTUAL ALLOWANCES

         The percentage of the Company's  revenues derived from Medicare,  third
party  payers,  commercial  insurers  and  managed  care  patients  continue  to
increase.  The Medicare regulations and various managed care contracts are often
complex and may include multiple reimbursement mechanisms for different types of
services provided in our clinical laboratory.


                                       10



We estimate the allowance for contractual  allowances on a payer-specific  basis
given  our   interpretation   of  the  applicable   regulations  and  historical
calculations.   However,  the  services  authorized  and  provided  and  related
reimbursement are often subject to interpretation  that could result in payments
that  differ  from  our  estimates.   Additionally,  updated  regulations  occur
frequently  necessitating  continual  review and  assessment  of the  estimation
process by management.

ALLOWANCE FOR DOUBTFUL ACCOUNTS

         The Company's  ability to collect  outstanding  receivables  from third
party  payers is  critical to its  operating  performance  and cash  flows.  The
primary  collection  risk lies with  uninsured  patients  or  patients  for whom
primary  insurance  has paid but a  patient  portion  remains  outstanding.  The
Company estimates the allowance for doubtful  accounts  primarily based upon the
age of the accounts  since invoice date.  The Company  continually  monitors its
accounts  receivable  balances and utilizes cash collections data to support the
basis for its  estimates of the  provision  for doubtful  accounts.  Significant
changes  in payer mix or  regulations  could  have a  significant  impact on the
Company's  results of operations  and cash flows.  In addition,  the Company has
implemented a process to estimate and review the  collections of its receivables
based on the period they have been outstanding.  Historical collection and payor
reimbursement  experience is an integral part of the estimation  process related
to reserves for doubtful  accounts.  The Company also assesses the current state
of  its  billing  functions  in  order  to  identify  any  known  collection  or
reimbursement  issues in order to assess  the  impact,  if any,  on the  reserve
estimates, which involves judgment. The Company believes that the collectibility
of its receivables is directly  linked to the quality of its billing  processes,
most notably,  those related to obtaining  the correct  information  in order to
bill  effectively for the services  provided.  Revisions in reserve for doubtful
accounts  estimates  are  recorded as an  adjustment  to bad debt  expense.  The
Company  believes that its  collection  and reserves  processes,  along with the
close monitoring of its billing processes, helps reduce the risk associated with
material  revisions  to reserve  estimates  resulting  from  adverse  changes in
collection and reimbursement experience and billing operations.

INCOME TAXES

         The Company  accounts  for income taxes under the  liability  method of
accounting for income taxes. Under the liability method, deferred tax assets and
liabilities  are  recognized  for the future tax  consequences  attributable  to
differences  between the financial statement carrying amounts of existing assets
and liabilities and their  respective tax bases.  The liability  method requires
that any tax benefits recognized for net operating loss carry forwards and other
items be reduced by a valuation  allowance  where it is more likely than not the
benefits may not be realized.  Deferred tax assets and  liabilities are measured
using  enacted  tax rates  expected  to apply to taxable  income in the years in
which those temporary differences are expected to be recovered or settled. Under
the liability  method,  the effect on deferred tax assets and  liabilities  of a
change in tax rates is  recognized  in income in the period  that  includes  the
enactment date.

IMPAIRMENT OF LONG-LIVED ASSETS

         The Company evaluates the requirement to recognize impairment losses on
long-lived  assets used in operations  when indicators of impairment are present
and the  undiscounted  cash flows  estimated to be generated by those assets are
less than the assets'  carrying  amount.  Company  management  believes  that no
impairment to its long-lived assets has occurred.

                                       11



Results of Operations

THREE MONTHS ENDED OCTOBER 31, 2003 COMPARED WITH THREE MONTHS ENDED
OCTOBER 31, 2002

         Revenues  from  operations  for the three months ended October 31, 2003
were $10.3 million a decrease of $7.1 million over revenues from  operations for
the three months ended October 31, 2002.  This decrease was due to a decrease of
$7.7 million in revenues from our research product sales operations offset by an
increase of $.6 million in revenues from clinical reference laboratory operation
over revenues for such activities in the period ended October 31, 2003.

          The  decrease in research  product  sales  resulted  primarily  from a
decrease in direct sales of research products of labeling and detection reagents
for the genomics and sequencing  markets  related to the decrease sales based on
the  termination  of a contract  with one major  distributor.  Research  product
revenue from this one major  distributor  accounted for approximately 83% of the
Company's total research  product revenues in the period ended October 31, 2002.
See "Item 1. Legal Proceedings."

         The increase of clinical  laboratory services revenue was due primarily
to  increased  volume of  higher  priced  esoteric  tests.  Clinical  laboratory
services are provided to patients covered by various third party payor programs,
including Medicare and health maintenance organizations ("HMO's").  Billings for
services are included in revenue net of allowances for contractual discounts and
allowances  paid for  differences  between the amounts  billed and the estimated
amount to be paid.  Recent  trends had  indicated a decrease  in the  collection
rates from the  Medicare  Program,  certain  third party  payors and HMO's.  The
clinical  laboratory is subject to seasonal  fluctuations in operating  results.
Volume of testing  generally  declines  during the summer  months,  the year-end
holiday  periods and other major holidays.  In addition,  volume declines due to
inclement weather may reduce net revenues. Therefore,  comparison of the results
of successive quarters may not accurately reflect trends or results for the full
year.

         The cost of  research  products  sold  decreased  by $.9 million to $.4
million from the prior three month  period.  This  decrease was primarily due to
the  decrease  in  expenditures  related  to the  decreased  sales  based on the
termination of a contract with one major distributor.

         The cost of  clinical  laboratory  services  increased  by $.2  million
during this period primarily due to an increase in certain esoteric tests.

         Research  and  development  expenses  increased  by  approximately  $.1
million as a result of an increase in the expenses related to the clinical trial
activities and other research projects.

         Selling  expenses  decreased  by $.4 million  during these three months
ended, as compared to the prior year's three months. This decrease was primarily
due to a  reduction  of orders  shipped  to one major  distributor  of  research
products. See "Item 1. Legal Proceedings."

         General and administrative expenses increased by $.4 million due to the
increase  in overall  insurance  costs of  professional,  directors  & officers,
liability insurance premiums and an increase in data processing personnel costs.

         The Company's  legal  expenses  increased by $.2 million to $.9 million
from $.7 million as compared to the previous  year.  This  increase is primarily
due to the increase in patent  infringement  proceedings and the increase in the
overall legal activities on these infringement proceedings.

                                       12



         The Company's provision for uncollectible accounts receivable increased
by $.2 million to $2.4  million  from $2.2 million as compared to the same three
month period last year at the clinical  laboratory  division.  The percentage of
the provision for uncollectible accounts receivable as a relationship to revenue
increased  to 31.6% for these  three  months  ended as compared to 31.3% for the
same three month period last year. This increase was primarily due to the change
in the mix of payors.

         Interest income was comparable to last years prior three months ended.

         For the three months ended  October 31,  2003,  the Company  recorded a
benefit  for  income  taxes of $.5  million  based upon the  combined  effective
federal,  state and local income tax rates.  For the three months ended  October
31,  2002,  the Company  recorded a provision  for income  taxes of $2.4 million
which was based on the combined  effective  federal,  state and local income tax
rates.

         Income (loss) before  (provision)  benefit for taxes on income from the
research and development  segment  activities and related costs was $(71,000) in
for period ended October 31, 2003,  as compared to income  before  provision for
taxes on income of $6.3  million in for  period  ended  October  31,  2002.  The
decrease in the income  resulted  primarily  from a decrease in direct  sales of
research  products of labeling  and  detection  reagents  for the  genomics  and
sequencing markets to one major  distributor.  Income before provision for taxes
on income from the clinical  reference  laboratories  segment  amounted to a $.7
million for period ending October 31, 2003, as compared to income of $.8 million
for fiscal 2002. The decrease in income before taxes for the clinical laboratory
segment  was  primarily  due to the  increase  in costs  based on an increase in
volume of esoteric tests being ordered by physicians.  These esoteric tests have
higher  pricing  levels  as  compared  to the  regular  tests  performed  at the
laboratory.

Item 3.  Quantitative and Qualitative Disclosures About Market Risk

The Company's earnings and cash flows are subject to fluctuations due to changes
in interest  rates  primarily  from its investment of available cash balances in
investment  grade corporate and U.S.  government  securities.  Under its current
policies,  the Company  does not use interest  rate  derivative  instruments  to
manage exposure to interest rate changes.

Item 4.  Controls and Procedures

Under the supervision and with the  participation  of the Company's  management,
including the Company's Chief Executive Officer and Chief Financial Officer, the
Company has  evaluated  the  effectiveness  of the design and  operation  of its
disclosure  controls and procedures pursuant to Exchange Act Rule 13a-14c within
90 days of the filing date of this quarterly  report.  Based on that evaluation,
the Chief  Executive  Officer and Chief  Financial  Officer have  concluded that
these  disclosure   controls  and  procedures  are  effective.   There  were  no
significant  changes in the Company's internal controls or in other factors that
could  significantly  affect internal  controls  subsequent to the date of their
evaluation.

                                       13



                           PART II - Other Information

Item 1.  LEGAL PROCEEDINGS

In June 1999, the Company filed suit in the United States District Court for the
Southern  District of New York against  Gen-Probe  Incorporated,  Chugai  Pharma
U.S.A., Inc., Chugai Pharmaceutical Co., Ltd., bioMerieux,  Inc., bioMerieux SA,
and Becton  Dickinson and Company,  charging them with  infringing the Company's
U.S. Patent  4,900,659,  which concerns probes for the detection of the bacteria
that causes  gonorrhea.  On January 26, 2001, the court granted the  defendants'
motion for summary  judgment that the Company's  patent is invalid.  On July 15,
2002,  the Court of Appeals for the Federal  Circuit  reversed  the  judgment of
invalidity and remanded the case to the district court for further  proceedings.
In March 2003,  settlements  have been reached with  bioMerieux and Chugai;  the
settlements did not have a material monetary impact on the Company. There can be
no assurance  that the Company will be successful  in the on-going  proceedings.
However, even if the Company is not successful, management does not believe that
there will be a significant adverse monetary impact to the Company.

On March 6, 2002, the Company was named,  along with certain of its officers and
directors among others,  in a complaint  entitled Lawrence F. Glaser and Maureen
Glaser,  individually  and on behalf of  Kimberly,  Erin,  Hannah,  and Benjamin
Glasser v. Hyman Gross,  Barry Weiner,  Enzo Biochemical  Inc.,  Elazar Rabbani,
Shahram Rabbani, John Delucca, Dean Engelhardt,  Richard Keating, Doug Yates and
Docs 1-50, in the U.S. District Court for the Eastern District of Virginia.  The
complaint  was filed by an investor in the Company who has filed for  bankruptcy
protection and his family. The complaint alleged securities and common law fraud
and breach of fiduciary duty and seeks in excess of $150 million in damages.  On
August  22,  2002,  the  complaint  was  voluntarily  dismissed;  however  a new
substantially similar complaint was filed at the same time. On October 21, 2002,
the Company and the other  defendants  filed a motion to dismiss the  complaint,
and the plaintiffs responded by amending the complaint and dropping their claims
against  defendants Keating and Yates. On November 18, 2002, the Company and the
other defendants again moved to dismiss the Amended Complaint. On July 16, 2003,
the Court issued a Memorandum  Opinion  dismissing the Amended  Complaint in its
entirety with prejudice. Plaintiffs thereafter moved for reconsideration but the
Court  denied  the motion on  September  8, 2003.  The  plaintiffs  subsequently
appealed to the Fourth Circuit and that appeal is presently pending. The Company
does not believe that the complaint  has any merit and was correctly  dismissed,
and intends to continue to defend the complaint vigorously in any event.

In March 2002,  Enzo Life Sciences,  a subsidiary of the Company,  filed suit in
the United States  District  Court for the District of Delaware  against  Digene
Corp.,  charging it with infringing the Company's U.S. Patent No.  6,221,581 B1,
which concerns a novel process for detecting  nucleic acids of interest.  On May
31, 2002, Digene filed counterclaims in that suit against Enzo Life Sciences and
the Company,  including business tort counterclaims relating to the `581 patent.
Digene  further  contends that the Company has caused it  substantial  damage by
interfering with business and financial opportunities. There can be no assurance
that the Company and Enzo Life Sciences will be successful in these proceedings.
However, even if Enzo Life Sciences is not successful in its patent infringement
suit,  management  does not  believe  that there will be a  significant  adverse
monetary  impact to the  Company.  With respect to Digene's  counterclaims,  the
Company and Enzo Life  Sciences  believe them to be without  merit and intend to
defend themselves vigorously. Trial is scheduled for March 22, 2004.

In October 2002,  the Company filed suit in the United States  District Court of
the Southern  District of New York against Amersham plc,  Amersham  Biosciences,
Perkin Elmer, Inc., Perkin Elmer Life Sciences, Inc., Sigma-Aldrich Corporation,
Sigma Chemical Company,  Inc.,  Molecular Probes,  Inc. and Orchid  Biosciences,
Inc. In January  2003, the Company  amended its complaint to include  defendants

                                       14



Sigma Aldrich Co. and Sigma  Aldrich,  Inc. The counts set forth in the suit are
for breach of contract; patent infringement; unfair competition under state law;
unfair  competition  under  federal law;  tortuous  interference  with  business
relations;  and fraud in the inducement of contract.  The complaint alleges that
these counts arise out of the defendants' breach of  distributorship  agreements
with the Company concerning labeled nucleotide products and technology,  and the
defendants' infringement of patents covering the same. In April, 2003, the Court
directed that individual  complaints be filed separately against each defendant.
Enzo has  done so and has  added  Yale for  technical  reasons  relating  to its
standing to enforce the four Yale patents of which Enzo is  exclusive  licensee.
Yale and Enzo are aligned in protecting the validity and  enforceability  of the
subject  patents.  In June,  2003,  the Court  directed  all parties to submit a
stipulation  setting forth dates for the completion of discovery.  A stipulation
to this  effect is  currently  being  negotiated  and is likely to  provide  for
discovery to take place through early 2004,  with a trial to take place in 2004.
Defendants  have not yet  answered  the  individual  complaints  although  it is
anticipated that the answers,  when filed,  will include a number of affirmative
defenses and, possible,  counterclaim.  In addition, two of the Defendants filed
motions  to  dismiss  Enzo's  patent  infringement  claims  as to  four  of  the
patents-in-suit  on the grounds that Enzo is not the exclusive  licensee of such
patents.  On October 16, 2003,  the court heard oral  argument on the motion and
reserved  its  decision.  There can be no  assurance  that the  Company  will be
successful in this litigation.  However,  even if the Company is not successful,
management  does not believe that there will be a significant  adverse  monetary
impact to the Company.

On October 28, 2003, the Company and Enzo Life  Sciences,  Inc., a subsidiary of
the  Company,  filed suit in the United  States  District  Court of the  Eastern
District  of New York  against  Affymetrix,  Inc.  The  Complaint  alleges  that
Affymetrix improperly transferred or distributed  substantial business assets of
the Company to third parties,  including  portions of the Company's  proprietary
technology, reagent systems, detection reagents and other intellectual property.
The  Complaint  also  charges  that  Affymetrix  failed to account  for  certain
shortfalls in sales of the Company's  products,  and that Affymetrix  improperly
induced   collaborators   and  customers  to  use  the  Company's   products  in
unauthorized  fields or otherwise in violation of the  agreement.  The Complaint
seeks full  compensation  from  Affymetrix  to the Company  for its  substantial
damages,  in addition to injunctive and  declaratory  relief to prohibit,  among
other things,  Affymetrix's  unauthorized use, development,  manufacture,  sale,
distribution  and  transfer  of  the  Company's  products,   technology,  and/or
intellectual   property,  as  well  as  to  prohibit  Affymetrix  from  inducing
collaborators,  joint venture partners, customers and other third parties to use
the  Company's  products  in  violation  of the terms of the  agreement  and the
Company's rights.  Subsequent to the filing of the Complaint against Affymetrix,
Inc. referenced above, on or about November 10, 2003, Affymetrix, Inc. filed its
own complaint against the Company and its subsidiary,  Enzo Life Sciences, Inc.,
in the United  States  District  Court for the  Southern  District  of New York,
seeking among other things,  declaratory  relief that Affymetrix,  Inc., has not
breached the parties'  agreement,  that it has not  infringed  certain of Enzo's
Patents, and that certain of Enzo's patents are invalid, and damages for alleged
breach of the parties' agreement, unfair competition, and tortuous interference,
as well as certain  injunction relief to prevent alleged unfair  competition and
tortuous  interference.  The Company does not believe that the complaint has any
merit and intends to defend vigorously.

                                       15


Item 6.   EXHIBITS AND REPORTS ON FORM 8-K

          (a) EXHIBITS

          Exhibit No.       Exhibit

          31(a)             Certification of Elazar Rabbani,  Ph.D.  pursuant to
                            Section 302 of the Sarbanes-Oxley Act of 2002.

          31(b)             Certification  of Barry  Weiner  pursuant to Section
                            302 of the Sarbanes-Oxley Act of 2002.

          32(a)             Certification of Elazar Rabbani,  Ph.D.  pursuant to
                            18 U.S.C.  ss. 1350, as adopted  pursuant to Section
                            906 of the Sarbanes-Oxley Act of 2002.

          32(b)             Certification  of Barry Weiner pursuant to 18 U.S.C.
                            ss.1350,  as adopted  pursuant to Section 906 of the
                            Sarbanes-Oxley Act of 2002.

          (b)    REPORTS ON FORM 8-K.

                 One Form 8-K  dated  October  29,  2003  was  furnished  to the
Securities  and Exchange  Commission  during the quarter ended October 31, 2003,
pursuant to Item 12 of Form 8-K. Pursuant to General  Instruction B of Form 8-K,
information  furnished  pursuant  to Item 12 is not deemed to be "filed" for the
purposes  of  Section  18 of  the  Securities  Exchange  Act  of  1934,  is  not
incorporated by reference into this Report on Form 10-Q and Enzo does not intend
to  incorporate  that report on Form 8-K by reference  into any filing under the
Securities Act of 1933 or the Securities Exchange Act of 1934.


                                   SIGNATURES


Pursuant to the  requirements  of the  Securities  and Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.




                                                         ENZO BIOCHEM, INC.
                                                            (registrant)




Date: December 12, 2003                             by:  /s/ BARRY WEINER
                                                        ------------------------
                                                        Chief Financial Officer,


                                       16