EXHIBIT 4.2

                          REGISTRATION RIGHTS AGREEMENT

     REGISTRATION RIGHTS AGREEMENT (this  "Agreement"),  dated as of February 1,
2005 by and between AVITAR,  INC., a Delaware  corporation (the "Company"),  and
CORNELL CAPITAL PARTNERS, LP, a Delaware limited partnership (the "Investor").

         WHEREAS:

     A. In  connection  with the Standby  Equity  Distribution  Agreement by and
between  the  parties  hereto  of  even  date  herewith  (the  "Standby   Equity
Distribution Agreement"),  the Company has agreed, upon the terms and subject to
the conditions of the Standby Equity Distribution  Agreement,  to issue and sell
to the Investor that number of shares of the Company's  common stock,  par value
US$0.01 per share (the "Common Stock"),  which can be purchased  pursuant to the
terms of the Standby  Equity  Distribution  Agreement for an aggregate  purchase
price of up to Ten Million U.S.  Dollars  ($10,000,000).  Capitalized  terms not
defined  herein  shall have the meaning  ascribed to them in the Standby  Equity
Distribution Agreement.

     B. To induce the  Investor  to  execute  and  deliver  the  Standby  Equity
Distribution  Agreement,  the Company has agreed to provide certain registration
rights  under  the  Securities  Act of  1933,  as  amended,  and the  rules  and
regulations  thereunder,  or any similar  successor statute  (collectively,  the
"1933 Act"), and applicable state securities laws.

     NOW,  THEREFORE,  in consideration of the premises and the mutual covenants
contained  herein and other good and  valuable  consideration,  the  receipt and
sufficiency  of which are hereby  acknowledged,  the  Company  and the  Investor
hereby agree as follows:

1.       DEFINITIONS.

     As used in this  Agreement,  the  following  terms shall have the following
meanings:

a. "Person" means a corporation,  a limited liability company, an association, a
partnership,  an  organization,  a business,  an individual,  a governmental  or
political subdivision thereof or a governmental agency.

b. "Register," "registered," and "registration" refer to a registration effected
by preparing and filing one or more  Registration  Statements (as defined below)
in  compliance  with the 1933 Act and pursuant to Rule 415 under the 1933 Act or
any successor rule providing for offering  securities on a continuous or delayed
basis ("Rule 415"),  and the  declaration or ordering of  effectiveness  of such
Registration   Statement(s)  by  the  United  States   Securities  and  Exchange
Commission (the "SEC").

c.  "Registrable  Securities"  means the  Investor's  Shares,  as defined in the
Standby  Equity  Distribution  Agreement and shares of Common Stock  issuable to
Investors pursuant to the Standby Equity Distribution Agreement.

d.  "Registration  Statement" means a registration  statement under the 1933 Act
which covers the Registrable Securities.

2. REGISTRATION.

a.  Mandatory  Registration.  The Company  shall prepare and file with the SEC a
Registration  Statement on Form S-1, SB-2 or on such other form as is available.
The Company shall cause such Registration  Statement to be declared effective by
the SEC prior to the first sale to the  Investor of the  Company's  Common Stock
pursuant to the Standby Equity Distribution Agreement.

b.  Sufficient  Number of Shares  Registered.  In the event the number of shares
available  under a  Registration  Statement  filed  pursuant to Section  2(a) is
insufficient to cover all of the Registrable  Securities  which the Investor has
purchased  pursuant to the Standby Equity  Distribution  Agreement,  the Company
shall amend the Registration Statement, or file a new Registration Statement (on
the short form available therefore, if applicable),  or both, so as to cover all
of such Registrable  Securities which the Investor has purchased pursuant to the
Standby Equity Distribution  Agreement as soon as practicable,  but in any event
not later than  fifteen  (15) days after the  necessity  therefore  arises.  The
Company  shall  use  it  best  efforts  to  cause  such  amendment   and/or  new
Registration  Statement to become effective as soon as practicable following the
filing thereof.  For purposes of the foregoing  provision,  the number of shares
available under a Registration  Statement shall be deemed "insufficient to cover
all of the  Registrable  Securities"  if at any time the  number of  Registrable
Securities  issuable  on an Advance  Notice  Date is greater  than the number of
shares available for resale under such Registration Statement.

3. RELATED OBLIGATIONS.

a. The Company shall keep the Registration  Statement effective pursuant to Rule
415 at all times  until the date on which the  Investor  shall have sold all the
Registrable Securities covered by such Registration Statement (the "Registration
Period"),  which Registration Statement (including any amendments or supplements
thereto  and  prospectuses  contained  therein)  shall not  contain  any  untrue
statement  of a material  fact or omit to state a material  fact  required to be
stated  therein,  or necessary to make the statements  therein,  in light of the
circumstances in which they were made, not misleading.

b. The Company  shall prepare and file with the SEC such  amendments  (including
post-effective  amendments) and supplements to a Registration  Statement and the
prospectus used in connection with such Registration Statement, which prospectus
is to be filed  pursuant to Rule 424  promulgated  under the 1933 Act, as may be
necessary to keep such Registration  Statement effective at all times during the
Registration Period, and, during such period,  comply with the provisions of the
1933 Act with respect to the  disposition of all  Registrable  Securities of the
Company  covered by such  Registration  Statement until such time as all of such
Registrable  Securities  shall  have been  disposed  of in  accordance  with the
intended methods of disposition by the seller or sellers thereof as set forth in
such  Registration  Statement.  In the case of amendments  and  supplements to a
Registration Statement which are required to be filed pursuant to this Agreement
(including  pursuant to this Section 3(b)) by reason of the  Company's  filing a
report on Form 10-KSB, Form 10-QSB or Form 8-K or any analogous report under the
Securities  Exchange Act of 1934, as amended (the "1934 Act"), the Company shall
have incorporated such report by reference into the Registration  Statement,  if
applicable,  or shall file such  amendments or  supplements  with the SEC on the
same day on which the 1934 Act report is filed which created the requirement for
the Company to amend or supplement the Registration Statement.

c. The Company shall furnish to the Investor  without  charge,  (i) at least one
copy of such  Registration  Statement  as declared  effective by the SEC and any
amendment(s)  thereto,   including  financial  statements  and  schedules,   all
documents  incorporated therein by reference,  all exhibits and each preliminary
prospectus,  (ii) ten (10)  copies  of the  final  prospectus  included  in such
Registration Statement and all amendments and supplements thereto (or such other
number of copies as such Investor may  reasonably  request) and (iii) such other
documents as such Investor may reasonably  request from time to time in order to
facilitate the disposition of the Registrable Securities owned by such Investor.

d. The  Company  shall use its best  efforts to (i)  register  and  qualify  the
Registrable  Securities  covered by a  Registration  Statement  under such other
securities or "blue sky" laws of such  jurisdictions in the United States as the
Investor reasonably requests, (ii) prepare and file in those jurisdictions, such
amendments  (including  post-effective   amendments)  and  supplements  to  such
registrations   and   qualifications   as  may  be  necessary  to  maintain  the
effectiveness  thereof  during the  Registration  Period,  (iii) take such other
actions as may be necessary to maintain such registrations and qualifications in
effect at all times  during  the  Registration  Period,  and (iv) take all other
actions reasonably necessary or advisable to qualify the Registrable  Securities
for sale in such jurisdictions; provided, however, that the Company shall not be
required  in  connection  therewith  or as a  condition  thereto to (w) make any
change to its articles of incorporation  or by-laws,  (x) qualify to do business
in any jurisdiction  where it would not otherwise be required to qualify but for
this  Section  3(d),  (y)  subject  itself  to  general  taxation  in  any  such
jurisdiction,  or (z) file a general  consent  to service of process in any such
jurisdiction.  The Company shall promptly  notify the Investor of the receipt by
the  Company  of  any  notification  with  respect  to  the  suspension  of  the
registration  or  qualification  of any of the  Registrable  Securities for sale
under the securities or "blue sky" laws of any jurisdiction in the United States
or its receipt of actual notice of the  initiation  or threat of any  proceeding
for such purpose.

e. As promptly as practicable after becoming aware of such event or development,
the Company  shall notify the Investor in writing of the  happening of any event
as a result of which the  prospectus  included in a Registration  Statement,  as
then in effect,  includes an untrue  statement of a material fact or omission to
state a material  fact  required to be stated  therein or  necessary to make the
statements  therein,  in light of the circumstances  under which they were made,
not  misleading  (provided  that in no  event  shall  such  notice  contain  any
material, nonpublic information), and promptly prepare a supplement or amendment
to such Registration Statement to correct such untrue statement or omission, and
deliver ten (10) copies of such  supplement or amendment to each  Investor.  The
Company shall also promptly notify the Investor in writing (i) when a prospectus
or any prospectus  supplement or  post-effective  amendment has been filed,  and
when  a  Registration  Statement  or any  post-effective  amendment  has  become
effective (notification of such effectiveness shall be delivered to the Investor
by facsimile on the same day of such effectiveness),  (ii) of any request by the
SEC for  amendments  or  supplements  to a  Registration  Statement  or  related
prospectus  or  related  information,  and  (iii)  of the  Company's  reasonable
determination that a post-effective  amendment to a Registration Statement would
be appropriate.

f. The Company  shall use its best  efforts to prevent the  issuance of any stop
order or other suspension of effectiveness of a Registration  Statement,  or the
suspension of the qualification of any of the Registrable Securities for sale in
any  jurisdiction  within the United  States of America and, if such an order or
suspension  is issued,  to obtain the  withdrawal of such order or suspension at
the earliest  possible moment and to notify the Investor of the issuance of such
order  and the  resolution  thereof  or its  receipt  of  actual  notice  of the
initiation or threat of any proceeding for such purpose.

g. At the reasonable  request of the Investor,  the Company shall furnish to the
Investor,  on the date of the  effectiveness of the  Registration  Statement and
thereafter  from  time to time on such  dates  as the  Investor  may  reasonably
request (i) a letter, dated such date, from the Company's  independent certified
public  accountants in form and substance as is customarily given by independent
certified public accountants to underwriters in an underwritten public offering,
and (ii) an opinion,  dated as of such date, of counsel representing the Company
for purposes of such Registration  Statement, in form, scope and substance as is
customarily given in an underwritten public offering, addressed to the Investor.

h. The Company shall make  available for inspection by (i) the Investor and (ii)
one firm of accountants or other agents retained by the Investor  (collectively,
the  "Inspectors")  all  pertinent  financial and other  records,  and pertinent
corporate documents and properties of the Company (collectively, the "Records"),
as shall be  reasonably  deemed  necessary  by each  Inspector,  and  cause  the
Company's officers,  directors and employees to supply all information which any
Inspector may reasonably request;  provided,  however, that each Inspector shall
agree,  and the Investor hereby agrees,  to hold in strict  confidence and shall
not make any  disclosure  (except to an  Investor) or use of any Record or other
information which the Company  determines in good faith to be confidential,  and
of which determination the Inspectors are so notified, unless (a) the disclosure
of such Records is necessary to avoid or correct a  misstatement  or omission in
any Registration  Statement or is otherwise required under the 1933 Act, (b) the
release of such Records is ordered pursuant to a final,  non-appealable subpoena
or order from a court or government body of competent  jurisdiction,  or (c) the
information  in such  Records has been made  generally  available  to the public
other than by  disclosure  in violation of this or any other  agreement of which
the Inspector and the Investor has knowledge. The Investor agrees that it shall,
upon  learning  that  disclosure  of such  Records is sought in or by a court or
governmental body of competent  jurisdiction or through other means, give prompt
notice to the  Company  and allow the  Company,  at its  expense,  to  undertake
appropriate  action to prevent  disclosure  of, or to obtain a protective  order
for, the Records deemed confidential.

i.  The  Company  shall  hold in  confidence  and not  make  any  disclosure  of
information   concerning  the  Investor  provided  to  the  Company  unless  (i)
disclosure  of such  information  is  necessary  to comply with federal or state
securities  laws, (ii) the disclosure of such  information is necessary to avoid
or correct a misstatement or omission in any Registration  Statement,  (iii) the
release of such  information  is ordered  pursuant to a subpoena or other final,
non-appealable   order  from  a  court  or   governmental   body  of   competent
jurisdiction,  or (iv) such information has been made generally available to the
public other than by  disclosure  in  violation  of this  Agreement or any other
agreement.  The Company agrees that it shall,  upon learning that  disclosure of
such  information  concerning  the  Investor  is  sought  in  or by a  court  or
governmental body of competent  jurisdiction or through other means, give prompt
written  notice  to the  Investor  and  allow the  Investor,  at the  Investor's
expense, to undertake  appropriate action to prevent disclosure of, or to obtain
a protective order for, such information.

j. The Company  shall use its best efforts  either to cause all the  Registrable
Securities  covered  by a  Registration  Statement  (i)  to be  listed  on  each
securities  exchange on which  securities  of the same class or series issued by
the  Company  are  then  listed,  if any,  if the  listing  of such  Registrable
Securities is then  permitted  under the rules of such exchange or to secure the
inclusion for quotation on the National Association of Securities Dealers,  Inc.
OTC Bulletin Board for such  Registrable  Securities.  The Company shall pay all
fees and  expenses in  connection  with  satisfying  its  obligation  under this
Section 3(j).

k. The Company shall  cooperate with the Investor to the extent  applicable,  to
facilitate the timely  preparation and delivery of certificates (not bearing any
restrictive  legend)  representing  the  Registrable  Securities  to be  offered
pursuant to a Registration  Statement and enable such certificates to be in such
denominations  or amounts,  as the case may be, as the Investor  may  reasonably
request and registered in such names as the Investor may request.

l. The Company  shall use its best efforts to cause the  Registrable  Securities
covered  by the  applicable  Registration  Statement  to be  registered  with or
approved by such other governmental  agencies or authorities as may be necessary
to consummate the disposition of such Registrable Securities.

m. The Company shall make generally available to its security holders as soon as
practical,  but not later  than  ninety  (90) days after the close of the period
covered thereby, an earnings statement (in form complying with the provisions of
Rule 158 under the 1933 Act) covering a twelve-month  period beginning not later
than the first day of the Company's  fiscal quarter next following the effective
date of the Registration Statement.

n.  The  Company  shall  otherwise  use its  best  efforts  to  comply  with all
applicable  rules and regulations of the SEC in connection with any registration
hereunder.

o. Within two (2)  business  days after a  Registration  Statement  which covers
Registrable  Securities  is ordered  effective  by the SEC,  the  Company  shall
deliver,  and shall  cause legal  counsel  for the  Company to  deliver,  to the
transfer  agent for such  Registrable  Securities  (with copies to the Investor)
confirmation that such Registration Statement has been declared effective by the
SEC in the form attached hereto as Exhibit A.

p. The Company shall take all other reasonable actions necessary to expedite and
facilitate  disposition by the Investor of Registrable  Securities pursuant to a
Registration Statement.

4. OBLIGATIONS OF THE INVESTOR.

     The Investor  agrees  that,  upon receipt of any notice from the Company of
the  happening  of any event of the kind  described in Section 3(f) or the first
sentence of 3(e),  the Investor  will  immediately  discontinue  disposition  of
Registrable  Securities pursuant to any Registration  Statement(s) covering such
Registrable  Securities  until  the  Investor's  receipt  of the  copies  of the
supplemented  or amended  prospectus  contemplated by Section 3(e) or receipt of
notice that no supplement or amendment is required.  Notwithstanding anything to
the contrary,  the Company shall cause its transfer agent to deliver  unlegended
certificates  for shares of Common  Stock to a  transferee  of the  Investor  in
accordance  with the  terms of the  Standby  Equity  Distribution  Agreement  in
connection  with any sale of  Registrable  Securities  with respect to which the
Investor has entered into a contract for sale prior to the Investor's receipt of
a notice from the Company of the happening of any event of the kind described in
Section  3(f) or the first  sentence of 3(e) and for which the  Investor has not
yet settled.

5. EXPENSES OF REGISTRATION.

     All  expenses  incurred  in  connection  with  registrations,   filings  or
qualifications pursuant to Sections 2 and 3, including,  without limitation, all
registration,  listing and qualifications fees,  printers,  legal and accounting
fees shall be paid by the Company.

6.       INDEMNIFICATION.

     With respect to Registrable Securities which are included in a Registration
Statement under this Agreement:

a. To the fullest  extent  permitted by law, the Company will,  and hereby does,
indemnify,  hold  harmless and defend the  Investor,  the  directors,  officers,
partners,  employees,  agents,  representatives of, and each Person, if any, who
controls the Investor  within the meaning of the 1933 Act or the 1934 Act (each,
an "Indemnified  Person"),  against any losses,  claims,  damages,  liabilities,
judgments, fines, penalties, charges, costs, reasonable attorneys' fees, amounts
paid in  settlement  or  expenses,  joint or  several  (collectively,  "Claims")
incurred in  investigating,  preparing or  defending  any action,  claim,  suit,
inquiry,  proceeding,  investigation  or appeal  taken from the  foregoing by or
before any court or governmental,  administrative  or other  regulatory  agency,
body or the SEC,  whether  pending or threatened,  whether or not an indemnified
party is or may be a party thereto ("Indemnified Damages"), to which any of them
may become subject  insofar as such Claims (or actions or  proceedings,  whether
commenced or threatened, in respect thereof) arise out of or are based upon: (i)
any  untrue  statement  or alleged  untrue  statement  of a  material  fact in a
Registration Statement or any post-effective  amendment thereto or in any filing
made in connection with the  qualification  of the offering under the securities
or other "blue sky" laws of any jurisdiction in which Registrable Securities are
offered  ("Blue Sky  Filing"),  or the  omission or alleged  omission to state a
material fact required to be stated  therein or necessary to make the statements
therein not misleading; (ii) any untrue statement or alleged untrue statement of
a material fact contained in any final  prospectus (as amended or  supplemented,
if the Company files any amendment  thereof or supplement  thereto with the SEC)
or the omission or alleged omission to state therein any material fact necessary
to make the statements made therein,  in light of the circumstances  under which
the  statements  therein were made,  not  misleading;  or (iii) any violation or
alleged  violation  by the Company of the 1933 Act, the 1934 Act, any other law,
including,  without  limitation,  any  state  securities  law,  or any  rule  or
regulation  there  under  relating  to the  offer  or  sale  of the  Registrable
Securities  pursuant to a  Registration  Statement (the matters in the foregoing
clauses (i) through (iii) being, collectively,  "Violations"). The Company shall
reimburse  the  Investor  and each  such  controlling  person  promptly  as such
expenses  are  incurred  and  are  due  and  payable,  for  any  legal  fees  or
disbursements or other reasonable  expenses  incurred by them in connection with
investigating  or  defending  any such  Claim.  Notwithstanding  anything to the
contrary  contained  herein,  the  indemnification  agreement  contained in this
Section 6(a):  (x) shall not apply to a Claim by an  Indemnified  Person arising
out of or based upon a Violation which occurs in reliance upon and in conformity
with information  furnished in writing to the Company by such Indemnified Person
expressly  for  use in  connection  with  the  preparation  of the  Registration
Statement or any such amendment thereof or supplement thereto;  (y) shall not be
available  to the extent  such Claim is based on a failure  of the  Investor  to
deliver  or to  cause to be  delivered  the  prospectus  made  available  by the
Company, if such prospectus was timely made available by the Company pursuant to
Section 3(e); and (z) shall not apply to amounts paid in settlement of any Claim
if such settlement is effected without the prior written consent of the Company,
which consent shall not be unreasonably withheld. Such indemnity shall remain in
full force and effect  regardless of any  investigation  made by or on behalf of
the Indemnified Person.

b.  In  connection  with  a  Registration  Statement,  the  Investor  agrees  to
indemnify,  hold harmless and defend,  to the same extent and in the same manner
as is set forth in Section 6(a), the Company, each of its directors, each of its
officers  who signs the  Registration  Statement  and each  Person,  if any, who
controls the Company within the meaning of the 1933 Act or the 1934 Act (each an
"Indemnified  Party"),  against any Claim or Indemnified Damages to which any of
them may become subject, under the 1933 Act, the 1934 Act or otherwise,  insofar
as  such  Claim  or  Indemnified  Damages  arise  out of or is  based  upon  any
Violation,  in each  case to the  extent,  and  only to the  extent,  that  such
Violation  occurs in reliance  upon and in conformity  with written  information
furnished to the Company by the Investor  expressly for use in  connection  with
such  Registration  Statement;  and,  subject to Section 6(d), the Investor will
reimburse any legal or other expenses  reasonably incurred by them in connection
with  investigating  or defending any such Claim;  provided,  however,  that the
indemnity  agreement  contained  in this  Section  6(b) and the  agreement  with
respect to  contribution  contained in Section 7 shall not apply to amounts paid
in  settlement  of any Claim if such  settlement  is effected  without the prior
written  consent  of the  Investor,  which  consent  shall  not be  unreasonably
withheld;  provided,  further,  however, that the Investor shall be liable under
this Section 6(b) for only that amount of a Claim or Indemnified Damages as does
not  exceed  the  net  proceeds  to the  Investor  as a  result  of the  sale of
Registrable Securities pursuant to such Registration  Statement.  Such indemnity
shall remain in full force and effect regardless of any investigation made by or
on behalf of such Indemnified  Party.  Notwithstanding  anything to the contrary
contained herein, the  indemnification  agreement contained in this Section 6(b)
with respect to any prospectus shall not inure to the benefit of any Indemnified
Party if the untrue  statement  or omission of material  fact  contained  in the
prospectus  was corrected and such new  prospectus was delivered to the Investor
prior to the Investor's use of the prospectus to which the Claim relates.

c. Promptly  after receipt by an Indemnified  Person or Indemnified  Party under
this  Section 6 of  notice  of the  commencement  of any  action  or  proceeding
(including  any  governmental  action or  proceeding)  involving  a Claim,  such
Indemnified  Person or Indemnified Party shall, if a Claim in respect thereof is
to be made against any  indemnifying  party under this Section 6, deliver to the
indemnifying  party  a  written  notice  of the  commencement  thereof,  and the
indemnifying  party shall have the right to  participate  in, and, to the extent
the indemnifying  party so desires,  jointly with any other  indemnifying  party
similarly  noticed,  to assume  control  of the  defense  thereof  with  counsel
mutually  satisfactory to the indemnifying  party and the Indemnified  Person or
the  Indemnified  Party,  as  the  case  may  be;  provided,  however,  that  an
Indemnified  Person or Indemnified  Party shall have the right to retain its own
counsel  with the fees  and  expenses  of not  more  than one  counsel  for such
Indemnified  Person or Indemnified  Party to be paid by the indemnifying  party,
if, in the reasonable opinion of counsel retained by the indemnifying party, the
representation  by such counsel of the Indemnified  Person or Indemnified  Party
and the  indemnifying  party would be  inappropriate  due to actual or potential
differing interests between such Indemnified Person or Indemnified Party and any
other party  represented  by such counsel in such  proceeding.  The  Indemnified
Party or Indemnified Person shall cooperate fully with the indemnifying party in
connection  with any  negotiation  or defense of any such action or claim by the
indemnifying  party and shall furnish to the indemnifying  party all information
reasonably  available  to the  Indemnified  Party or  Indemnified  Person  which
relates  to such  action  or  claim.  The  indemnifying  party  shall  keep  the
Indemnified  Party or  Indemnified  Person fully apprised at all times as to the
status of the defense or any settlement  negotiations  with respect thereto.  No
indemnifying  party shall be liable for any  settlement of any action,  claim or
proceeding effected without its prior written consent,  provided,  however, that
the indemnifying party shall not unreasonably  withhold,  delay or condition its
consent.  No indemnifying party shall,  without the prior written consent of the
Indemnified  Party or  Indemnified  Person,  consent to entry of any judgment or
enter into any  settlement  or other  compromise  which  does not  include as an
unconditional  term  thereof  the giving by the  claimant or  plaintiff  to such
Indemnified  Party or  Indemnified  Person of a release  from all  liability  in
respect to such claim or litigation.  Following  indemnification as provided for
hereunder,  the  indemnifying  party  shall be  subrogated  to all rights of the
Indemnified Party or Indemnified Person with respect to all third parties, firms
or corporations  relating to the matter for which indemnification has been made.
The  failure  to  deliver  written  notice to the  indemnifying  party  within a
reasonable  time of the  commencement  of any such action shall not relieve such
indemnifying  party of any liability to the  Indemnified  Person or  Indemnified
Party under this Section 6, except to the extent that the indemnifying  party is
prejudiced in its ability to defend such action.

d. The  indemnification  required  by this  Section 6 shall be made by  periodic
payments  of the  amount  thereof  during  the  course of the  investigation  or
defense, as and when bills are received or Indemnified Damages are incurred.

e. The  indemnity  agreements  contained  herein shall be in addition to (i) any
cause of action or similar right of the Indemnified Party or Indemnified  Person
against  the  indemnifying  party  or  others,  and  (ii)  any  liabilities  the
indemnifying party may be subject to pursuant to the law.

7. CONTRIBUTION.

     To the extent any indemnification by an indemnifying party is prohibited or
limited by law, the indemnifying  party agrees to make the maximum  contribution
with respect to any amounts for which it would otherwise be liable under Section
6 to the fullest extent permitted by law; provided, however, that: (i) no seller
of Registrable  Securities  guilty of fraudulent  misrepresentation  (within the
meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution from
any  seller  of  Registrable   Securities  who  was  not  guilty  of  fraudulent
misrepresentation; and (ii) contribution by any seller of Registrable Securities
shall be limited in amount to the net amount of proceeds received by such seller
from the sale of such Registrable Securities.

8. REPORTS UNDER THE 1934 ACT.

     With a view to making  available  to the  Investor the benefits of Rule 144
promulgated under the 1933 Act or any similar rule or regulation of the SEC that
may at any time permit the  Investors to sell  securities  of the Company to the
public without registration ("Rule 144") the Company agrees to:

a. make and keep public information available, as those terms are understood and
defined in Rule 144;

b. file with the SEC in a timely manner all reports and other documents required
of the  Company  under  the 1933  Act and the  1934  Act so long as the  Company
remains subject to such  requirements  (it being  understood that nothing herein
shall limit the Company's  obligations  under Section 6.3 of the Standby  Equity
Distribution  Agreement)  and the filing of such reports and other  documents is
required for the applicable provisions of Rule 144; and

c. furnish to the Investor so long as the Investor owns Registrable  Securities,
promptly  upon  request,  (i) a written  statement  by the  Company  that it has
complied with the reporting  requirements of Rule 144, the 1933 Act and the 1934
Act,  (ii) a copy of the most recent  annual or quarterly  report of the Company
and such other  reports and  documents so filed by the  Company,  and (iii) such
other information as may be reasonably  requested to permit the Investor to sell
such securities pursuant to Rule 144 without registration.


9. AMENDMENT OF REGISTRATION RIGHTS.

     Provisions of this Agreement may be amended and the observance  thereof may
be waived (either generally or in a particular instance and either retroactively
or  prospectively),  only by a written  agreement  between  the  Company and the
Investor.  Any amendment or waiver  effected in  accordance  with this Section 9
shall be binding upon the Investor and the Company.  No  consideration  shall be
offered or paid to any Person to amend or consent to a waiver or modification of
any provision of any of this  Agreement  unless the same  consideration  also is
offered to all of the parties to this Agreement.

10. MISCELLANEOUS.

a. A Person is deemed to be a holder of  Registrable  Securities  whenever  such
Person owns or is deemed to own of record such  Registrable  Securities.  If the
Company receives conflicting instructions, notices or elections from two or more
Persons with respect to the same Registrable  Securities,  the Company shall act
upon the basis of instructions,  notice or election received from the registered
owner of such Registrable Securities.

b. Any notices,  consents, waivers or other communications required or permitted
to be given  under the terms of this  Agreement  must be in writing  and will be
deemed to have been delivered: (i) upon receipt, when delivered personally; (ii)
upon receipt,  when sent by facsimile (provided  confirmation of transmission is
mechanically or electronically generated and kept on file by the sending party);
or (iii) one business day after deposit with a nationally  recognized  overnight
delivery  service,  in each case properly  addressed to the party to receive the
same. The addresses and facsimile numbers for such communications shall be:

If to the Company, to:      Avitar, Inc.
                            65 Dan Road
                            Canton, MA 02021
                            Attention: Peter P. Phildius
                            Telephone: (781) 821-2440
                            Facsimile: (781) 821-4458

With a copy to:             Kirkpatrick & Lockhart Nicholson Graham LLP
                            201 South Biscayne Boulevard - Suite 2000
                            Miami, FL 33131-2399
                            Attention:        Clayton E. Parker, Esq.
                            Telephone:        (305) 539-3300
                            Facsimile:        (305) 358-7095

If to the Investor, to:     Cornell Capital Partners, LP
                            101 Hudson Street - Suite 3700
                            Jersey City, New Jersey 07302
                            Attention: Mark Angelo
                                       Portfolio Manager
                            Telephone: (201) 985-8300
                            Facsimile: (201) 985-8266

With a copy to:             Cornell Capital Partners, LP
                            101 Hudson Street -Suite 3700
                            Jersey City, NJ 07302
                            Attention: Troy Rillo, Esq.
                                       Senior Vice-President
                            Telephone: (201) 985-8300
                            Facsimile: (201) 985-8266

Any party may  change  its  address  by  providing  written  notice to the other
parties  hereto at least five days prior to the  effectiveness  of such  change.
Written  confirmation  of receipt  (A) given by the  recipient  of such  notice,
consent,  waiver or other  communication,  (B)  mechanically  or  electronically
generated by the sender's facsimile machine containing the time, date, recipient
facsimile  number  and an image of the first  page of such  transmission  or (C)
provided by a courier or overnight courier service shall be rebuttable  evidence
of  personal  service,  receipt  by  facsimile  or  receipt  from  a  nationally
recognized  overnight  delivery  service in accordance  with clause (i), (ii) or
(iii) above, respectively.

c. Failure of any party to exercise any right or remedy under this  Agreement or
otherwise,  or delay by a party in  exercising  such right or remedy,  shall not
operate as a waiver thereof.

d. The  corporate  laws of the  State of New  Jersey  shall  govern  all  issues
concerning  the  relative  rights of the  Company  and the  Investor.  All other
questions concerning the construction,  validity, enforcement and interpretation
of this  Agreement  shall be governed by the  internal  laws of the State of New
Jersey,  without giving effect to any choice of law or conflict of law provision
or rule  (whether  of the State of New  Jersey or any other  jurisdiction)  that
would cause the application of the laws of any jurisdiction other than the State
of New  Jersey.  Each party  hereby  irrevocably  submits  to the  non-exclusive
jurisdiction  of the  Superior  Courts of the State of New  Jersey,  sitting  in
Hudson County, New Jersey and the Federal District Court for the District of New
Jersey  sitting in Newark,  New  Jersey,  for the  adjudication  of any  dispute
hereunder or in connection herewith or with any transaction  contemplated hereby
or discussed herein, and hereby irrevocably  waives, and agrees not to assert in
any suit, action or proceeding,  any claim that it is not personally  subject to
the  jurisdiction  of any such court,  that such suit,  action or  proceeding is
brought  in an  inconvenient  forum or that the  venue of such  suit,  action or
proceeding is improper. Each party hereby irrevocably waives personal service of
process  and  consents  to  process  being  served in any such  suit,  action or
proceeding  by  mailing a copy  thereof to such  party at the  address  for such
notices to it under this Agreement and agrees that such service shall constitute
good and sufficient  service of process and notice  thereof.  Nothing  contained
herein  shall be deemed to limit in any way any  right to serve  process  in any
manner  permitted by law. If any provision of this Agreement shall be invalid or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect the validity or enforceability of the remainder of this Agreement in that
jurisdiction  or the  validity  or  enforceability  of  any  provision  of  this
Agreement in any other  jurisdiction.  EACH PARTY HEREBY  IRREVOCABLY WAIVES ANY
RIGHT IT MAY HAVE, AND AGREES NOT TO REQUEST,  A JURY TRIAL FOR THE ADJUDICATION
OF ANY  DISPUTE  HEREUNDER  OR IN  CONNECTION  HEREWITH  OR ARISING  OUT OF THIS
AGREEMENT OR ANY TRANSACTION CONTEMPLATED HEREBY.

e. This  Agreement,  the  Standby  Equity  Distribution  Agreement,  the  Escrow
Agreement,  and the Placement  Agent Agreement  constitute the entire  agreement
among the parties  hereto with respect to the subject matter hereof and thereof.
There are no  restrictions,  promises,  warranties or  undertakings,  other than
those set forth or referred to herein and therein.  This Agreement,  the Standby
Equity  Distribution  Agreement,  the Escrow Agreement,  and the Placement Agent
Agreement  supersede all prior agreements and  understandings  among the parties
hereto with respect to the subject matter hereof and thereof.

f.  This  Agreement  shall  inure  to the  benefit  of and be  binding  upon the
permitted successors and assigns of each of the parties hereto.

g. The headings in this  Agreement  are for  convenience  of reference  only and
shall not limit or otherwise affect the meaning hereof.

h. This Agreement may be executed in identical counterparts, each of which shall
be  deemed  an  original  but all of  which  shall  constitute  one and the same
agreement.  This  Agreement,  once executed by a party,  may be delivered to the
other party hereto by facsimile transmission of a copy of this Agreement bearing
the signature of the party so delivering this Agreement.

i. Each party shall do and perform, or cause to be done and performed,  all such
further  acts  and  things,  and  shall  execute  and  deliver  all  such  other
agreements,  certificates,  instruments  and  documents,  as the other party may
reasonably  request in order to carry out the intent and accomplish the purposes
of this Agreement and the consummation of the transactions contemplated hereby.

j. The language used in this Agreement will be deemed to be the language  chosen
by  the  parties  to  express  their  mutual  intent  and  no  rules  of  strict
construction will be applied against any party.

k. This  Agreement is intended  for the benefit of the parties  hereto and their
respective  permitted successors and assigns, and is not for the benefit of, nor
may any provision hereof be enforced by, any other Person.



                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]









     IN WITNESS  WHEREOF,  the  parties  have caused  this  Registration  Rights
Agreement to be duly executed as of day and year first above written.

                                    COMPANY:
                                            AVITAR, INC.

                                       By:
                                            Name:    Peter P. Phildius
                                            Title:   CEO


                                            INVESTOR:
                                            CORNELL CAPITAL PARTNERS, LP

                                            By:      Yorkville Advisors, LLC
                                            Its:     General Partner

                                       By:
                                            Name:    Mark Angelo
                                            Title:   Portfolio Manager









                                    EXHIBIT A
                         FORM OF NOTICE OF EFFECTIVENESS
                            OF REGISTRATION STATEMENT



Attention:

                  Re:      AVITAR, INC.

Ladies and Gentlemen:

     We are counsel to Avitar, Inc., a Delaware corporation (the "Company"), and
have  represented  the Company in connection  with that certain  Standby  Equity
Distribution  Agreement (the "Standby Equity  Distribution  Agreement")  entered
into  by  and  between  the  Company  and  Cornell  Capital  Partners,  LP  (the
"Investor")  pursuant to which the Company issued to the Investor  shares of its
Common Stock, par value US$0.01 per share (the "Common Stock").  Pursuant to the
Standby  Equity  Distribution  Agreement,  the Company  also has entered  into a
Registration  Rights  Agreement  with the  Investor  (the  "Registration  Rights
Agreement")  pursuant  to which the  Company  agreed,  among  other  things,  to
register  the  Registrable  Securities  (as defined in the  Registration  Rights
Agreement)  under the  Securities  Act of 1933, as amended (the "1933 Act").  In
connection  with  the  Company's   obligations  under  the  Registration  Rights
Agreement,  on ____________ ____, the Company filed a Registration  Statement on
Form ________ (File No.  333-_____________) (the "Registration  Statement") with
the Securities and Exchange  Commission  (the "SEC") relating to the Registrable
Securities which names the Investor as a selling stockholder thereunder.

     In connection with the foregoing,  we advise you that a member of the SEC's
staff has advised us by  telephone  that the SEC has entered an order  declaring
the  Registration  Statement  effective  under  the 1933 Act at  [ENTER  TIME OF
EFFECTIVENESS] on [ENTER DATE OF EFFECTIVENESS] and we have no knowledge,  after
telephonic  inquiry  of a  member  of the  SEC's  staff,  that  any  stop  order
suspending its  effectiveness  has been issued or that any  proceedings for that
purpose  are  pending  before,  or  threatened  by, the SEC and the  Registrable
Securities  are  available  for  resale  under  the  1933  Act  pursuant  to the
Registration Statement.

                                        Very truly yours,



                                        By:
                                           ------------------------------------

cc:      Cornell Capital Partners, LP