<ARTICLE>                     5
<LEGEND>
     This schedule  contains summary  financial  information  extracted from the
     Enzon,  Inc. and Subsidiaries  Consolidated  Condensed  Balance Sheet as of
     September 30, 1997 and the Consolidated  Condensed  Statement of Operations
     for the three  months  ended  September  30, 1997 and is  qualified  in its
     entirety by reference to such financial statements.
</LEGEND>
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              JUN-30-1998
<PERIOD-END>                                   SEP-30-1997
<CASH>                                          9,603,543
<SECURITIES>                                            0
<RECEIVABLES>                                   2,236,513
<ALLOWANCES>                                            0
<INVENTORY>                                     1,009,276
<CURRENT-ASSETS>                               12,920,345
<PP&E>                                         15,686,182
<DEPRECIATION>                                 13,185,086
<TOTAL-ASSETS>                                 16,934,636
<CURRENT-LIABILITIES>                           5,632,878
<BONDS>                                                 0
<PREFERRED-MANDATORY>                                   0
<PREFERRED>                                         1,080
<COMMON>                                          309,134
<OTHER-SE>                                      9,276,612
<TOTAL-LIABILITY-AND-EQUITY>                   16,934,636
<SALES>                                         2,464,634
<TOTAL-REVENUES>                                4,669,743
<CGS>                                             604,708
<TOTAL-COSTS>                                   4,080,119
<OTHER-EXPENSES>                                        0
<LOSS-PROVISION>                                        0
<INTEREST-EXPENSE>                                  6,438
<INCOME-PRETAX>                                   697,924
<INCOME-TAX>                                            0
<INCOME-CONTINUING>                               697,924
<DISCONTINUED>                                          0
<EXTRAORDINARY>                                         0
<CHANGES>                                               0
<NET-INCOME>                                      697,924
<EPS-PRIMARY>                                        0.02
<EPS-DILUTED>                                        0.02