ENZON INC
S-3, 1996-03-07
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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<PAGE>

       AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION
                         ON MARCH 7, 1996

                                       REGISTRATION NO. 33-_____
_________________________________________________________________

                SECURITIES AND EXCHANGE COMMISSION
                      WASHINGTON, D.C.  20549

                             FORM S-3
                      REGISTRATION STATEMENT
                               UNDER
                    THE SECURITIES ACT OF 1933

                            ENZON, INC.
      (Exact name of registrant as specified in its charter)

            DELAWARE                            22-2372868
       (State or other juris-             (I.R.S. Employer
       diction of incorporation         Identification No.)
       or organization)

        20 Kingsbridge Road, Piscataway, New Jersey  08854
                          (908) 980-4500
   (Address, including zip code, and telephone number, including
      area code, of registrant's principal executive offices)

                         JOHN CARUSO, ESQ.
              VICE PRESIDENT, BUSINESS DEVELOPMENT,
                   GENERAL COUNSEL AND SECRETARY
                            ENZON, INC.
        20 KINGSBRIDGE ROAD, PISCATAWAY, NEW JERSEY  08854
                          (908) 980-4500

     (Name, address, including zip code, and telephone number,
            including area code, of agent for service)

                            Copies to:

                      KEVIN T. COLLINS, ESQ.
                          ROSS & HARDIES
          65 EAST 55TH STREET, NEW YORK, NEW YORK  10022
                          (212) 421-5555



     Approximate date of  commencement  of proposed sale to the public:  As
soon as practicable after this Registration Statement becomes effective.
     If the only securities being registered on this Form are being offered
pursuant  to  dividend or interest reinvestment  plans,  please  check  the
following box.  [ ]

     If any securities being registered on this Form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the Securities Act
of 1933, other than securities  offered only in connection with dividend or
interest reinvestment plans, check the following box.  [X]

     If  this  Form  is  filed to register  additional  securities  for  an
offering pursuant to Rule 462(b) under the Securities Act, please check the
following box and list the  Securities Act registration statement number of
the earlier effective registration statement for the same offering. [  ]

     If this Form is a post-effective  amendment  filed  pursuant  to  Rule
462(b)  under  the  Securities  Act,  check  the following box and list the
securities   registration  statement  number  of  the   earlier   effective
registration statement for the same offering [  ]

     If delivery  of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [ ]
<PAGE>
                  CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
                                                         Proposed Maximum      Proposed Maximum
                                                        Offering Price Per    Aggregate Offering
     Title of Each Class of                                    Share                 Price              Amount of
   Securities to be Registered       Amount to be                                                   Registration Fee
                                      Registered
<S>                              <C>                   <C>                   <C>                  <C>
Common Stock                           1,094,890             $4.75(1)             $5,200,728             $1,794
$.01 par value
per share
Common Stock                         2,503,912(2)            $4.75(1)             $11,893,582            $4,102
$.01 par value
per share
Common Stock                          638,686(3)             $4.75(1)             $3,033,759             $1,047
$.01 par value
per share
Common Stock                          123,175(4)             $4.75(1)              $585,081               $202
$.01 par value
per share
Totals                                 4,360,663               $4.75              $20,713,150            $7,145
</TABLE>

     (1)  Estimated  solely  for the purpose of computing the amount of the
          registration  fee  in  accordance  with  Rule  457(c)  under  the
          Securities Act of 1933,  as amended (the "Securities Act"), based
          on the average of the high  and  low  sale  price  for the Common
          Stock, $.01 par value per share (the "Common Stock")  as reported
          by  the  National  Association  of  Securities  Dealers Automated
          Quotation National Market System ("NASDAQ-NMS") on March 4, 1996.

     (2)  To  be  offered and sold by one of the Selling Stockholders  upon
          conversion  of  40,000 outstanding shares of Series B Convertible
          Preferred Stock (the  "Preferred  Shares").  The conversion price
          for the Preferred Shares is equal to  80%  of  the average of the
          closing  bid  price of the Common Stock for the five  consecutive
          trading  days ending  one  trading  day  prior  to  the  date  of
          conversion  as reported by the NASDAQ-NMS.  Such conversion price
          may be adjusted  upon the occurrence of certain triggering events
          (the "Triggering Events").

     (3)  To be offered and  sold by the Selling Stockholders upon exercise
          of  outstanding  Warrants.    Pursuant  to  Rule  416  under  the
          Securities Act, this registration  statement  also  relates to an
          indeterminate  number of additional shares of Common Stock  which
          may be issuable upon exercise of the Warrants to prevent dilution
          resulting  from  stock   splits,   stock  dividends  and  similar
          transactions.
     (4)  Additional shares which may be issued to the Selling Stockholders
          upon the occurrence of certain Triggering  Events,  to be offered
          and sold by the Selling Stockholders.


     The Registrant hereby amends this Registration Statement on  such date
or  dates  as  may  be  necessary  to  delay  its  effective date until the
Registrant  shall file a further amendment which specifically  states  that
this Registration Statement shall thereafter become effective in accordance
with Section  8(a)  of the Securities Act of 1933 or until the Registration
Statement shall become  effective  on  such  date as the Commission, acting
pursuant to said Section 8(a), may determine.
<PAGE>
                  SUBJECT TO COMPLETION - DATED MARCH 7, 1996

      Information contained herein is subject  to  completion or amendment.   A
registration statement relating to these securities  has  been  filed  with the
Securities  and Exchange Commission.  These securities may not be sold nor  may
offers to buy  be accepted prior to the time the registration statement becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to sell or the
solicitation of an offer to buy nor shall there be any sale of these securities
in any State in which such offer, solicitation or sale would be unlawful  prior
to registration or qualification under the securities laws of any such State.


                                  PROSPECTUS

                                  ENZON, INC.
_______________________________________________________________________________

                               4,360,663 SHARES
                                 COMMON STOCK
                               ($.01 PAR VALUE)


      This  Prospectus  relates to the offer and sale of up to 4,360,663 shares
of common stock, $.01 par  value  (the  "Common  Stock")  of  Enzon  Inc.  (the
"Company"   or   "Enzon")   by   certain  selling  stockholders  (the  "Selling
Stockholder").  Of such 4,360,663  shares  of Common Stock (i) 1,094,890 shares
(the  "Outstanding Common Shares") are outstanding  and  held  by  one  of  the
Selling   Stockholders;  (ii)  up  to  2,503,912  shares  (the  "Common  Shares
Underlying  the  Preferred  Shares")  are  issuable  upon  conversion of 40,000
outstanding shares of the Company's Series B Convertible Preferred  Stock, $.01
par  value  (the  "Preferred  Shares") held by one of the Selling Stockholders;
(iii) 638,686 shares (the "Warrant  Shares")  are  issuable upon exercise of an
aggregate of 638,686 outstanding warrants (the "Warrants")  held by the Selling
Stockholders;  and  (iv)  up  to 123,175 shares (the "Additional  Shares")  are
additional shares which may be  issued  to  the  Selling  Stockholders upon the
occurrence   of  certain  triggering  events  (the  "Triggering  Events").    A
Triggering Event  will have occurred in the event the registration statement of
which this Prospectus  forms  a  part  becomes  subject to a stop order, or the
Company fails to update such registration statement  as  required  by the rules
and  regulations  of the Securities and Exchange Commission (the "Commission"),
or the Company fails  to maintain a listing of the Common Stock on the National
Association of Securities  Dealers  Automated  Quotation National Market System
("NASDAQ-NMS"),  the  National  Association  of  Securities  Dealers  Automated
Quotation  SmallCap  Market ("NASDAQ-SmallCap") or certain  specified  national
securities exchanges.   The  conversion price for the Preferred Shares is equal
to 80% of the average of the closing bid price of the Common Stock for the five
consecutive trading days (the  "Average  Market  Price") ending one trading day
prior to the date of conversion as reported by NASDAQ-NMS, which percentage may
be adjusted downward upon the occurrence of a Triggering Event (the "Conversion
Price").  Accordingly, the actual number of shares  of  Common  Stock issued to
the  Selling  Stockholders and sold hereby will depend upon the Average  Market
Price of the Common  Stock  at  the  time  of  the  conversion of the Preferred
Shares, whether or not any of the Triggering Events occur  and  the duration of
the  Triggering  Events.   The  Company  believes that the number of shares  of
Common Stock to which this Prospectus relates  is  the maximum number of shares
of Common Stock that are likely to be issued to the  Selling  Stockholders  and
sold  hereby,  and  expects  that  the  actual number of shares of Common Stock
issued to the Selling Stockholders and sold  hereby  will  be  less  than  such
number.   See  "Risk Factors - Possible Volatility of Stock Price" and "Selling
Stockholders."   The  Selling  Stockholders  purchased  the  Outstanding Common
Shares, the Preferred Shares and the Warrants from the Company  pursuant  to  a
Securities Purchase Agreement (the "Securities Purchase Agreement") dated as of
January  31,  1996  and  entered  into by and among the Company and the Selling
Stockholders in a private placement  transaction  (the  "January  1996  Private
Placement").   The  Additional  Shares are issuable pursuant to the terms of  a
Registration Rights Agreement (the "Registration Rights Agreement") dated as of
January 31, 1996 and entered into  by  and  among  the  Company and the Selling
Stockholders  in  connection  with  the  January 1996 Private  Placement.   The
Preferred Shares are convertible at the Conversion  Price  commencing April 17,
1996  and  the  stated  value of each Preferred Share is $100.   The  Preferred
Shares do not pay a dividend.   The  Warrants  are  exercisable  at a per share
exercise price of $4.11 (as may be adjusted in accordance with the terms of the
Warrants) commencing on the earlier of the date of this Prospectus or April 17,
1996 and expire on February 7, 2001.  The Outstanding Common Shares, the Common
Shares  Underlying the Preferred Shares, the Warrant Shares and the  Additional
Shares are collectively referred to herein as the "Common Shares."

      The  Selling Stockholders may sell the Common Shares from time to time in
transactions   in  the  open  market,  in  negotiated  transactions,  or  by  a
combination of these  methods,  at  fixed prices that may be changed, at market
prices at the time of sale, at prices related to market prices or at negotiated
prices.  The Selling Stockholders may  effect these transactions by selling the
Common Shares to or through broker-dealers, who may receive compensation in the
form of discounts or commissions from the  Selling  Stockholders  or  from  the
purchasers of the Common Shares for whom the broker-dealers may act as agent or
to whom they may sell as principal, or both.  See "Plan of Distribution."

      The Company will bear all expenses in connection with the registration of
the  Common  Shares  herein  which  expenses  are estimated to be $61,000.  The
Selling Stockholders will pay any brokerage compensation in connection with its
sale of the Common Shares.  The Company will not  receive  any  of the proceeds
from the sale of the Common Shares by the Selling Stockholders.   To the extent
the Warrants are exercised the Company will apply the proceeds thereof  to  its
general  corporate  purposes.   The Company will receive no additional proceeds
upon the conversion of the Preferred Shares.  See "Use of Proceeds."

      The Company's Common Stock  is  traded in the over-the-counter market and
is quoted on the NASDAQ-NMS, under the  symbol  "ENZN."   On  March 4, 1996 the
reported last sale price of the Common Stock, as reported on NASDAQ-NMS, was $4
3/4 per share.


AN INVESTMENT IN THE SECURITIES OFFERED HEREBY INVOLVES A HIGH  DEGREE OF RISK.
SEE "RISK FACTORS" COMMENCING ON PAGE 6.

THESE  SECURITIES  HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES  AND
EXCHANGE COMMISSION  OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.


                 THE DATE OF THIS PROSPECTUS IS MARCH __, 1996
<PAGE>

                               TABLE OF CONTENTS


                                                                          PAGE


Available Information                                                        1

Incorporation of Certain Documents by Reference                              1

Prospectus Summary                                                           3

Risk Factors                                                                 6

Use of Proceeds                                                             11

Selling Stockholders.................................................       11

Plan of Distribution                                                        14

Legal Matters                                                               14

Experts                                                                     14



No  one  has  been  authorized  to  give  any  information  or   to   make  any
representation not contained or incorporated by reference in this Prospectus in
connection with this offering.  Any information or representation not contained
or  incorporated  by  reference  herein  must  not  be relied on as having been
authorized by the Company.  This Prospectus does not  constitute  an  offer  to
sell  or  the  solicitation of an offer to buy the securities offered hereby in
any state to any  person  to  whom  it  is  unlawful  to  make  such  offer  or
solicitation.   Except  where otherwise indicated, this Prospectus speaks as of
its  date and neither the  delivery  of  this  Prospectus  nor  any  sale  made
hereunder  shall, under any circumstances, create an implication that there has
been no change in the affairs of the Company since the date hereof.
<PAGE>
                             AVAILABLE INFORMATION

      The  Company   is  subject  to  the  informational  requirements  of  the
Securities Exchange Act  of  1934,  as  amended  (the  "Exchange  Act"), and in
accordance therewith files reports, proxy statements and other information with
the Commission.  Such reports, proxy statements and other information  filed by
the  Company  can  be  inspected  and copied at the public reference facilities
maintained by the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549,
and at the following Regional Offices  of  the  Commission:   New York Regional
Office,  Seven  World  Trade Center, Suite 1300, New York, New York 10048;  and
Chicago Regional Office,  Northwestern  Atrium Center, 500 West Madison Street,
Suite 1400, Chicago, Illinois 60661-2511.   Copies  of  such  material  can  be
obtained  from  the  Public  Reference  Section  of the Commission at 450 Fifth
Street, N.W., Washington, D.C. 20549 at prescribed rates.

      The  Company has filed with the Commission a  Registration  Statement  on
Form S-3 (the  "Registration Statement") under the Securities Act, with respect
to the shares of Common Stock offered hereby.  This Prospectus does not contain
all of the information set forth in the Registration Statement and the exhibits
and schedules thereto.  For further information with respect to the Company and
the shares of Common  Stock  offered  hereby,  reference  is hereby made to the
Registration Statement, exhibits and schedules.

      The  following  trademarks and service marks appear in  this  Prospectus:
ADAGEN and ONCASPAR are  registered  trademarks  of the Company; PEGNOLOGY is a
registered service mark of the Company; SCA is a registered  trademark of Enzon
Labs Inc., a wholly-owned subsidiary of the Company ("Enzon Labs"); Intron A is
a registered trademark of Schering Corporation.


                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

      The Company hereby incorporates by reference into this Prospectus (i) its
Annual  Report  on  Form  10-K for the Fiscal Year Ended June 30,  1995,  which
contains certified financial  statements  for  the Company's latest fiscal year
for  which a Form 10-K was required to have been  filed,  and  incorporates  by
reference  certain portions of the Company's definitive Proxy Statement for the
Annual Meeting  of  Stockholders  held December 5, 1995, (ii) all other reports
filed by the Company pursuant to Section  13(a)  or  15(d)  of the Exchange Act
since  June 30,  1995, including but not limited to, the Quarterly  Reports  on
Form 10-Q for the  Quarters  Ended September 30, 1995 and December 31, 1995 and
the Current Reports on Form 8-K  filed  by  the  Company with the Commission on
each of July 20, 1995, October 27, 1995 and February  8,  1996  and  (iii)  the
description  of the Company's Common Stock, $.01 par value, as contained in its
registration statement  on  Form  8-A, filed with the Commission on October 29,
1984, as amended by a Form 8 filed with the Commission on October 15, 1990.

      All documents filed by the Company  pursuant to Sections 13(a), 13(c), 14
and 15(d) of the Exchange Act, subsequent to  the  date hereof and prior to the
filing  of  a  post-effective  amendment  to the Registration  Statement  which
indicates that all shares of Common Stock offered  hereby  have  been  sold  or
which  deregisters  all  shares of Common Stock then remaining unsold, shall be
deemed to be incorporated  by  reference  into this Prospectus and to be a part
hereof from the date of filing of such documents.

      Any statement contained herein or in a document incorporated or deemed to
be  incorporated  by  reference  herein  shall be  deemed  to  be  modified  or
superseded for purposes of this Prospectus to the extent that such statement is
modified or superseded by a statement contained  herein  or  in  a subsequently
filed  document  which  also  is  or  is deemed to be incorporated by reference
herein.  Any such statement so modified  or  superseded  shall  not  be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.



      THE  COMPANY WILL PROVIDE, WITHOUT CHARGE, TO EACH PERSON (INCLUDING  ANY
BENEFICIAL OWNER)  TO  WHOM  THIS PROSPECTUS IS DELIVERED, UPON WRITTEN OR ORAL
REQUEST OF SUCH PERSON, A COPY  OF ANY AND ALL OF THE INFORMATION THAT HAS BEEN
INCORPORATED BY REFERENCE IN THIS  PROSPECTUS  (NOT  INCLUDING EXHIBITS TO SUCH
INFORMATION  UNLESS  SUCH EXHIBITS ARE SPECIFICALLY INCORPORATED  BY  REFERENCE
INTO SUCH INFORMATION).   SUCH REQUESTS SHOULD BE DIRECTED TO JOHN CARUSO, VICE
PRESIDENT,  BUSINESS  DEVELOPMENT,   GENERAL  COUNSEL  AND  SECRETARY,  AT  THE
COMPANY'S PRINCIPAL EXECUTIVE OFFICES  AT  20 KINGSBRIDGE ROAD, PISCATAWAY, NEW
JERSEY 08854, TELEPHONE (908) 980-4500.


                                     - 1 -

<PAGE>
                              PROSPECTUS SUMMARY

THE FOLLOWING SUMMARY IS QUALIFIED IN ITS ENTIRETY  BY  REFERENCE  TO  THE MORE
DETAILED  INFORMATION AND CONSOLIDATED FINANCIAL STATEMENTS APPEARING ELSEWHERE
AND INCORPORATED BY REFERENCE IN THIS PROSPECTUS.

                                  THE COMPANY

      Enzon,  Inc.  ("Enzon"  or  the "Company") is a biopharmaceutical company
that   develops,   manufactures   and   markets   enhanced   therapeutics   for
life-threatening   diseases  through  the  application   of   its   proprietary
technologies,  PEG  Modification   or   the   PEG   Process   and  Single-Chain
Antigen-Binding  (SCA)  proteins.   The  Company  is engaged primarily  in  the
research, development and commercialization of its  proprietary technologies in
the areas of  blood substitutes, genetic diseases and oncology.

      The Company has received marketing approval from  the  United States Food
and Drug Administration ("FDA") for two of its products: (i) ONCASPAR, approved
in February 1994 for the indication of acute lymphoblastic leukemia  ("ALL") in
patients  who  are  hypersensitive  to native forms of L-asparaginase and  (ii)
ADAGEN, the first successful application  of  enzyme replacement therapy for an
inherited  disease,  approved in March 1990 to treat  a  rare  form  of  Severe
Combined Immunodeficiency  Disease  ("SCID"),  commonly known as the Bubble Boy
Disease.

      The  Company  manufactures  both  ADAGEN  and  ONCASPAR   in   its  South
Plainfield,  New  Jersey  facility  and  markets  ADAGEN  on a worldwide basis.
ONCASPAR  is marketed in the U.S. by Rhone-Poulenc Rorer Pharmaceuticals,  Inc.
("RPR").  The  Company  received an aggregate of $6,000,000 from RPR related to
the granting of this license  during  the  fiscal years ended June 30, 1995 and
1994.  Under the license, which was amended  in  January  1995,  the Company is
also entitled to royalties on the sales of ONCASPAR in the U.S. by RPR of 23.5%
to  43.5%,  based  on the sales level of ONCASPAR.  During 1995, RPR  paid  the
Company $3,500,000 in advance royalties.  Royalties due under the RPR agreement
will be offset against  a  credit  in  the original amount of $5,970,000, which
represents the royalty advance plus reimbursement  of  certain  amounts due RPR
under  the  original  agreement  and  interest  expense.  The Company has  also
granted exclusive licenses to sell ONCASPAR in Canada  and  Mexico  to  RPR  in
exchange  for  royalty  payments  on  future  sales.   The Company is currently
pursuing  additional  licenses  for marketing and distribution  rights  outside
North America.  During November 1994,  ONCASPAR was approved in Germany for use
in patients with ALL who are hypersensitive to natural forms of L-asparaginase.

      ONCASPAR is the enzyme L-asparaginase  modified  by  the  PEG Process and
ADAGEN is the enzyme adenosine deaminase modified by the PEG Process.   The PEG
Process involves chemically attaching polyethylene glycol ("PEG"), a relatively
non-reactive   and   non-toxic   polymer,   to   proteins   and  certain  other
pharmaceuticals   for  the  purpose  of  enhancing  their  therapeutic   value.
Attachment  of  PEG  helps  to  disguise  the  proteins  and  to  reduce  their
recognition  by  the  immune   system,  thereby  generally  lowering  potential
immunogenicity.  Both the increased  molecular  size  and  lower immunogenicity
result in extended circulating blood life, in some cases from minutes to days.

      In addition to its approved products, the Company is conducting  research
and  developing  additional  drugs.  In the blood substitutes area, the Company
has undertaken the development  of a hemoglobin based oxygen carrier, utilizing
the protein hemoglobin modified by the PEG Process. In addition to its use as a
blood  substitute,  the  Company's  product   PEG-hemoglobin   may   act  as  a
radiosensitizer in cancer therapy.  Enzon has chosen to base PEG-hemoglobin  on
bovine  hemoglobin  due  to  its  superior oxygen-carrying properties, relative
stability, availability and low cost.  The Company conducted a Phase I clinical
trial in healthy volunteers and administered  PEG-hemoglobin  to 28 subjects up
to  a  dose  of  approximately 45 grams or the equivalent of approximately  1.5
units of whole blood.   During  December  1995,  the Company received clearance
from the Food and Drug Administration (the "FDA") to begin a multi-dose, multi-
center  clinical trial to test PEG-hemoglobin as a  radiosensitizer  in  cancer
patients  receiving  radiation  therapy.   The  study, in patients with various
advanced solid tumors, will primarily evaluate safety related to multiple doses
of  PEG-hemoglobin,  and  will  secondarily  evaluate  tumor  response  to  the
combination  therapy  of  radiation and PEG-hemoglobin.   In  addition  to  the
testing of PEG-hemoglobin as  a  radiosensitizer,  the  Company  also  plans to
conduct  future  clinical trials utilizing PEG-hemoglobin as a blood substitute
(resuscitation fluid)  for trauma patients.  The Company currently manufactures
and plans to manufacture  PEG-hemoglobin  for  future  trials  in a pilot plant
facility located in South Plainfield, New Jersey.

      In the area of genetic diseases, the Company is developing a PEG-modified
version  of the enzyme glucocerebrosidase to treat Gaucher disease,  a  genetic
disorder that  results  in  the  lack  of  beta-glucocerebrosidase,  an  enzyme
instrumental  in the breakdown and disposal of complex fatty substances in  the
bloodstream.   The   Company   manufactures   PEG-glucocerebrosidase  and  PEG-
hemoglobin at the same facility.  The Company has  suspended the manufacture of
PEG-glucocerebrosidase in order to dedicate such facility  exclusively  to  the
production  of  PEG-hemoglobin  for  clinical trials and to complete commercial
process development for PEG-hemoglobin.  The Company believes that the existing
facility at the present scale is adequate  to  supply all PEG-hemoglobin needed
for clinical trials up to FDA approval.

      The  Company  has  several  products under development  in  the  area  of
oncology which are all in the early  research  stage.   These  products include
PEG-modified anti-cancer compounds and a novel chemical compound.

      The  Company  is  pursuing  a  dual  strategy  for  commercializing   its
proprietary   technologies.   In  addition  to  developing,  manufacturing  and
marketing the Company's  proprietary  products,  the  Company  has  established
strategic  alliances  in  which Enzon licenses its proprietary technologies  in
exchange for milestone payments, manufacturing revenues and/or royalties.

      The Company is also developing  a  PEG  version of a Schering Corporation
("Schering") product, INTRON A (interferon alfa  2b).   During  the fiscal year
ended June 30, 1995, the Company amended its agreement with Schering and agreed
to  transfer  proprietary  know-how  and  manufacturing rights to Schering  for
$3,000,000, of which $2,000,000 was received  during the fiscal year ended June
30, 1995 with the remaining $1,000,000 being paid  upon completion of the know-
how   transfer.   The  Company  also  sold  to  Schering  847,489   shares   of
unregistered,  newly issued Common Stock for gross proceeds of $2,000,000.  The
Company is also  entitled  to  additional payments of approximately $5,550,000,
subject to the achievement of certain  milestones in the product's development,
and royalties on worldwide sales of PEG  INTRON A, if any.  The Company has the
option,  upon  FDA approval, to be Schering's  exclusive  manufacturer  of  PEG
INTRON A for the U.S. market.

      The Company  has  an  extensive licensing program for its SCA technology.
SCA proteins are genetically  engineered  proteins  designed  to  overcome  the
problems   hampering   the  diagnostic  and  therapeutic  use  of  conventional
monoclonal antibodies.   Pre-clinical  studies  have  shown  that  SCA proteins
target   and   penetrate  tumors  more  readily  than  conventional  monoclonal
antibodies.  Currently,  there are five SCA proteins in Phase I clinical trials
by various organizations,  including  a  product developed by the Company, SCA-
CC49.  The Company believes these organizations  will  have to obtain a license
from the Company under its SCA patents to commercialize  these  products.   The
Company  believes  that  SCA  proteins  may  be  useful  in  the development of
therapeutics in the area of oncology.

      The   Company  has  granted  SCA  licenses to seven companies,  including
Bristol-Myers  Squibb, Inc. ("Bristol-Myers"),  Baxter  Healthcare  Corporation
("Baxter"), Eli  Lilly  &  Co. ("Eli Lilly") and RPR.  These licenses generally
provide for upfront payments,  milestone payments and royalties on sales of FDA
approved products.

      In January 1996, pursuant  to  the  Securities  Purchase  Agreement,  the
Company  sold  to  the  Selling  Stockholders  the 1,094,890 Outstanding Common
Shares, the 40,000 Preferred Shares and the Warrants  to  purchase an aggregate
of  638,686  Warrant  Shares in a private placement transaction  for  aggregate
consideration of $7,000,000.  See "Selling Stockholders."

      Enzon, a Delaware  corporation,  was incorporated in 1981.  The Company's
executive offices are located at 20 Kingsbridge  Road,  Piscataway,  New Jersey
08854, telephone (908) 980-4500.


                                 THE OFFERING

Securities  Offered.........This  Prospectus  relates  to  an  offering  by the
                  Selling  Stockholders  of  up  to  4,360,663 shares of Common
                  Stock of the Company.  Of these shares  (i)  1,094,890 shares
                  are  Outstanding  Common  Shares  issued in the January  1996
                  Private  Placement; (ii) up to 2,503,912  shares  are  Common
                  Shares Underlying  Preferred  Shares  and  may be issued upon
                  conversion of the Preferred Shares issued in the January 1996
                  Private  Placement; (iii) 638,686 shares are  Warrant  Shares
                  and may be issued upon exercise of the Warrants issued in the
                  January 1996 Private Placement; and (iv) up to 123,175 shares
                  are Additional  Shares  which  may  be  issued to the Selling
                  Stockholders  only  upon  the  occurrence of  any  Triggering
                  Events.  The actual number of shares  of  Common Stock issued
                  to the Selling Stockholders and sold hereby  will depend upon
                  the Average Market Price of the Common Stock at  the  time of
                  the conversion of the Preferred Shares, whether or not any of
                  the   Triggering   Events  occur  and  the  duration  of  the
                  Triggering Events.   The  Company believes that the number of
                  shares of Common Stock to which  this  Prospectus  relates is
                  the maximum number of shares of Common Stock that are  likely
                  to be issued to the Selling Stockholders and sold hereby, and
                  expects  that  the  actual  number  of shares of Common Stock
                  issued to the Selling Stockholders and  sold  hereby  will be
                  less   than  such  number.   See  "Risk  Factors  -  Possible
                  Volatility of Stock Price" and "Selling Stockholders."


Securities Outstanding.....As  of  February 15, 1996 the Company had 27,430,800
                  shares of Common Stock outstanding.  Assuming that all of the
                  Preferred Shares are  converted,  all  of  the  Warrants  are
                  exercised, the Triggering Events occur and exist for a period
                  of  three  months,  and  no  other shares of Common Stock are
                  issued subsequent to February  15,  1996,  the  Company would
                  have 31,791,463 shares of Common Stock outstanding.  Assuming
                  all  of  the  foregoing,  except  that none of the Triggering
                  Events  occur, the Company would have  31,386,598  shares  of
                  Common Stock outstanding.  See "Selling Stockholders."


Use of Proceeds............The  Company  will not receive any proceeds from the
                  sale   of  the  Common  Shares   offered   by   the   Selling
                  Stockholders.   To  date the Company has received no proceeds
                  from the exercise of  the  Warrants.   No additional proceeds
                  will  be received in connection with the  conversion  of  the
                  Preferred  Shares.  If all of the Warrants are exercised, the
                  Company   will    receive   estimated   gross   proceeds   of
                  approximately $2,625,000.  The Company intends to utilize any
                  proceeds received from  the  exercise  of  the  Warrants  for
                  general  corporate  purposes.  There can be no assurance that
                  any of the outstanding  Warrants will be exercised.  See "Use
                  of Proceeds."

Risk Factors...............See "Risk Factors"  for a discussion of certain risk
                  factors that should be considered by prospective investors in
                  connection with an investment  in  the shares of Common Stock
                  offered hereby.

                                 RISK FACTORS

      An investment in the Common Shares offered hereby  involves a high degree
of risk.  Prospective investors should carefully consider  the  following  risk
factors  in  addition  to  the  other information set forth and incorporated by
reference in this Prospectus before making any decision to invest in the Common
Shares.

      ACCUMULATED DEFICIT AND UNCERTAINTY OF FUTURE PROFITABILITY.  The Company
was originally incorporated in 1981.   To  date,  the Company's sources of cash
have been the proceeds from the sale of its stock through  public  and  private
placements,  sales  of  ADAGEN,  sales  of  ONCASPAR, sales of its products for
research purposes, contract research and development  fees, technology transfer
and license fees and royalty advances.  At December 31, 1995 the Company had an
accumulated  deficit  of  approximately  $105,497,000.   To  date,  ADAGEN  and
ONCASPAR  are  the  only products of the Company which have been  approved  for
marketing by the FDA,  having  been  approved  in March 1990 and February 1994,
respectively.  In 1993 the Company granted exclusive  U.S. marketing rights for
ONCASPAR to RPR in consideration for which the Company received an aggregate of
$6,000,000  of license fees during the fiscal years ended  June  30,  1995  and
1994.  Under  the  license,  which  was amended in January 1995, the Company is
also entitled to royalties on the sales of ONCASPAR in the U.S. by RPR of 23.5%
to 43.5%, based on the sales level of  ONCASPAR.   During  1995,  RPR  paid the
Company $3,500,000 in advance royalties.  Royalties due under the RPR agreement
will  be  offset  against  a credit in the original amount of $5,970,000, which
represents the royalty advance  plus  reimbursement  of certain amounts due RPR
under  the  original agreement and interest expense.  The  Company  intends  to
pursue future licensing, marketing and development arrangements that may result
in additional  fees  to  the  Company  prior  to  its  receiving  revenues from
commercial sales of its products which are sufficient for the Company to earn a
profit.  There can be no assurance, however, that the Company will  be  able to
successfully  consummate  any  such  arrangements  or  receive such fees in the
future.   Although  the  Company  has  been receiving reimbursement  from  most
third-party payors for ADAGEN, there can  be no assurance that reimbursement at
these levels will continue.  Lifetime limits  on benefits which are included in
most  private  health  insurance  policies  could  permit   insurers  to  cease
reimbursement  for  ADAGEN.   Potential  investors  should  be  aware   of  the
difficulties  a  development  stage  enterprise such as the Company encounters,
especially in view of the intense competition in the pharmaceutical industry in
which the Company competes.  There can be no assurance that the Company's plans
will  either  materialize  or  prove  successful,   that   its  products  under
development will be successfully developed or that its products  will  generate
revenues sufficient to enable the Company to earn a profit.

      NEED  FOR FINANCING.  The Company's current sources of liquidity are  its
cash reserves, including the $6,678,000 in net proceeds obtained in the January
1996 Private  Placement,  and  interest  earned on such cash reserves, sales of
ADAGEN, sales of ONCASPAR, sales of its products  for  research  purposes,  and
license fees.  There can be no assurance as to the level of the Company's share
of profits which will be realized from the commercial sale of ONCASPAR pursuant
to  the  Company's license with RPR.  Total cash reserves, including short term
investments, as of December 31, 1995 were approximately $5,309,000.  Management
believes that  the  foregoing  sources  of  liquidity,  together  with  the net
proceeds  received by the Company from the January 1996 Private Placement  will
be sufficient  to  meet  the  Company's anticipated cash requirements, based on
current  spending levels, until  approximately  January  1998.   The  Company's
continued  operations  thereafter  will  depend  upon  its  ability  to realize
revenues from the commercial sale of its products which are sufficient to cover
its  operating and capital expense requirements, raise funds through equity  or
debt financing, or obtain significant contract research and development fees or
license fees.  The Company is exploring methods of meeting its anticipated cash
needs,  including  the  sale of its securities.  There can be no assurance that
any  of  the foregoing fund  raising  activities  will  successfully  meet  the
Company's  anticipated  cash  needs.   To  the  extent the Company is unable to
obtain funds, it may be required to curtail its activities.

      RAW MATERIALS AND DEPENDENCE UPON SUPPLIERS.   The  Company  is currently
producing  many  of  the unmodified proteins utilized in products it has  under
development, including purified bovine hemoglobin for use in its PEG-hemoglobin
product.  There can be no assurance that the purified bovine hemoglobin used in
the manufacture of PEG-hemoglobin  can  be produced in the amounts necessary to
expand the current clinical trials.  The  Company  may  be  required  to obtain
supply  contracts with outside suppliers for certain unmodified proteins.   The
Company does  not  produce  the  unmodified  adenosine  deaminase  used  in the
manufacture of ADAGEN, the unmodified L-asparaginase used in the manufacture of
ONCASPAR  and  the  unmodified  bovine  blood  used  in the manufacture of PEG-
hemoglobin and has a supply contract with an outside supplier for each of these
unmodified  proteins.   Delays  in  obtaining  or an inability  to  obtain  any
unmodified  protein  which the Company does not produce,  including  unmodified
adenosine deaminase, unmodified L-asparaginase or unmodified bovine blood could
have a material adverse  effect  on  the  Company.  In the event the Company is
required to locate an alternate supplier for  an unmodified protein utilized in
a product which is being sold commercially or which is in clinical development,
the  Company  will  likely be required to do additional  testing,  which  could
include chemical, pre-clinical  and  clinical  trials,  to demonstrate that the
alternate supplier's material is biologically and chemically  equivalent to the
unmodified  protein previously used.  Such evaluations could delay  development
of a product  which  is  in  clinical  trials, limit commercial sales of an FDA
approved product and cause the Company to incur significant additional expense.
Requirements for such evaluations would  be  determined  by  the  stage  of the
product's development and the reviewing division of the FDA.  If such alternate
material  is  not demonstrated to be chemically and biologically equivalent  to
the previously  used unmodified protein, the Company will likely be required to
repeat some or all  of the pre-clinical and clinical trials conducted with such
protein.  The marketing  of  an FDA approved drug could be disrupted while such
tests are conducted.  Even if  the alternate material is shown to be chemically
and biologically equivalent to the previously used protein, the FDA may require
the Company to conduct additional clinical trials with such alternate material.

      PATENTS AND PROPRIETARY TECHNOLOGY.   The  Company has licensed, and been
issued, a number of patents in the United States and  other  countries  and has
other  patent  applications  pending  to  protect  its  proprietary technology.
Although the Company believes that its patents provide adequate  protection for
the  conduct of its business, there can be no assurance that such patents  will
be of  substantial protection or commercial benefit to the Company, will afford
the Company adequate protection from competing products, will not be challenged
or declared invalid, or that additional United States patents or foreign patent
equivalents  will be issued to the Company.  The degree of patent protection to
be afforded to  biotechnological  inventions  is  uncertain  and  the Company's
products  are  subject  to  this uncertainty.  The Company is aware of  certain
issued patents and patent applications,  and  there  may  be  other patents and
applications, containing subject matter which the Company or its  licensees  or
collaborators  may  require  in  order to research, develop or commercialize at
least some of the Company's products.   There can be no assurance that licenses
under such subject matter will be available  on  acceptable  terms.   One  such
patent  is  U.S. Patent No. 5,084,558, which issued on January 28, 1992, and is
entitled "Extra  Pure  Semi-Synthetic  Blood Substitute."  It could be asserted
that this patent includes claims which would cover the Company's PEG-hemoglobin
product.   In  the opinion of the Company  and  the  Company's  outside  patent
counsel,  Lerner,  David,  Littenberg,  Krumholz  and  Mentlik,  the  Company's
PEG-hemoglobin  product  does not infringe any claim of such patent which would
be held valid if litigated.   However,  there  can be no assurance that a court
would find any of the claims of such patent to be  invalid,  that a court would
not hold that the Company's PEG-hemoglobin product does infringe  one  or  more
valid  claims  of  such  patent, or that a license could be obtained under such
patent on acceptable terms.   Pursuant to an opposition proceeding the European
patent application related to U.S. Patent No. 5,084,558 was revoked in November
1995.  The Company expects that  there  may  be  significant  litigation in the
industry regarding patents and other proprietary rights and, if  Enzon  were to
become  involved  in such litigation, it could consume a substantial amount  of
the Company's resources.   In  addition,  the  Company  relies  heavily  on its
proprietary  technologies for which pending patent applications have been filed
and on unpatented  know-how  developed  by the Company.  Insofar as the Company
relies on trade secrets and unpatented know-how  to  maintain  its  competitive
technological  position,  there  can  be  no  assurance  that  others  may  not
independently  develop  the same or similar technologies.  Although the Company
has  taken  steps  to  protect  its  trade  secrets  and  unpatented  know-how,
third-parties nonetheless may gain access to such information.

      Research Corporation  Technologies,  Inc.  ("Research Corporation") holds
the original patent upon which the PEG Process is  based.  Although the Company
has obtained several improvement patents in connection  with  the  PEG  Process
which  it  believes  represent  state  of  the  art technology, there can be no
assurance that any of these patents or the patent  held by Research Corporation
will enable the Company or Research Corporation to prevent infringement or that
competitors will not develop competitive products outside  the  protection that
may be afforded by these patents.  Research Corporation's patent  in the United
States  expires  in December 1996 and its patents in certain foreign  countries
have expired.  The  Company  is  aware  that  others  have  also  filed  patent
applications  and  have  been  granted  patents  in the United States and other
countries with respect to the application of PEG to proteins.

      MARKETING UNCERTAINTIES AND DEPENDENCE ON MARKETING PARTNERS.  Except for
ADAGEN, which treats a small patient population, the Company does not engage in
the direct commercial marketing of any of its products  and  therefore does not
have an established sales force.  For certain of its products,  the Company has
provided  exclusive  marketing rights to its corporate partners in  return  for
royalties to be received  on  sales.  With respect to ONCASPAR, the Company has
granted RPR exclusive marketing  rights  in the United States.  The Company has
also granted exclusive licenses to sell ONCASPAR in Canada and Mexico to RPR in
exchange for royalty payments on future sales.   The  Company expects to retain
marketing partners to market ONCASPAR in other foreign markets and is currently
pursuing  arrangements  in this regard.  There can be no  assurance  that  such
discussions will result in the Company concluding such arrangements.  Regarding
the marketing of certain  of the Company's future products, the Company expects
to evaluate whether to create  a  sales force to market certain products in the
United States or to continue to enter  into  license  and  marketing agreements
with others for United States and foreign marketing rights.   These  agreements
generally  provide that all or a significant portion of the marketing of  these
products will  be  conducted  by the Company's licensees or marketing partners.
In  addition, under certain of these  agreements,  the  Company's  licensee  or
marketing  partner may have all or a significant portion of the development and
regulatory approval responsibilities.  Should the licensee or marketing partner
fail to develop  a  marketable  product  (to  the  extent it is responsible for
product  development)  or  fail  to  market a product successfully,  if  it  is
developed, the Company's business may  be  adversely affected.  There can be no
assurance that the Company's marketing strategy  will be successful.  Under the
Company's  marketing and license agreements, the Company's  marketing  partners
and licensees  may  have  the  right to terminate the agreement and abandon the
product at any time for any reason  without  significant payments.  The Company
is  aware  that  certain  of  its  marketing  partners  are  pursuing  parallel
development  of  products  on their own and with other  collaborative  partners
which may compete with the licensed products and there can be no assurance that
the Company's other current  or  future marketing partners will not also pursue
such parallel courses.

      REIMBURSEMENT FROM THIRD-PARTY  PAYORS.   Sales of the Company's products
will be dependent in part on the availability of reimbursement from third-party
payors, such as governmental health administration  authorities, private health
insurers  and  other  organizations.   There  can  be  no assurance  that  such
reimbursement will be available or will permit the Company to sell its products
at  price  levels  sufficient for it to realize an appropriate  return  on  its
investment in product  development.   In  addition, lifetime limits on benefits
which  are  included  in most private health insurance  policies  could  permit
insurers  to  cease reimbursement  for  ADAGEN  prior  to  patients  completing
treatment.

      GOVERNMENT REGULATION.  The manufacturing and marketing of pharmaceutical
products in the  United  States is subject to stringent governmental regulation
and the sale of any of the  Company's  products for use in humans in the United
States will require the prior approval of  the  FDA.   The  FDA has established
mandatory procedures and safety standards which apply to the  clinical testing,
manufacture   and   marketing   of   pharmaceutical  products.   Pharmaceutical
manufacturing  facilities  are  also  regulated   by  state,  local  and  other
authorities.   Obtaining FDA approval for a new therapeutic  may  take  several
years and involve  substantial expenditures.  ADAGEN was approved by the FDA in
March 1990.  ONCASPAR  was  approved by the FDA in February 1994 and in Germany
in  November  1994 for patients  with  acute  lymphoblastic  leukemia  who  are
hypersensitive  to  native  forms of L-asparaginase and in Russia in April 1993
for therapeutic use in a broad  range  of cancers.  Except for these approvals,
none of the Company's products has been  approved for sale for use in humans in
the United States or elsewhere.  There can  be  no  assurance  that the Company
will be able to obtain FDA approval for any of its other products.   Failure to
obtain requisite governmental approvals or failure to obtain approvals  of  the
scope  requested,  will  delay  or  preclude  the  Company  or its licensees or
marketing partners from marketing their products, or limit the  commercial  use
of  the  products,  and  thereby  may  have  a  material  adverse affect on the
Company's liquidity and financial condition.

      INTENSE  COMPETITION  AND  RISK  OF  TECHNOLOGICAL  OBSOLESCENCE.    Many
established  biotechnology  and pharmaceutical companies with resources greater
than those of the Company are  engaged  in activities that are competitive with
Enzon's and may develop products or technologies  which  compete  with those of
the Company's. Although Enzon is not aware of any competitor which has achieved
the  same  level as the Company in utilizing PEG technology in developing  drug
products, it  is  aware  of other companies which are engaged in this field and
there can be no assurance  that  competitors will not successfully develop such
products in the future.  Although  there  are  other  companies  engaged in the
development  of  SCA  proteins,  Enzon  believes  that these companies will  be
required  to  obtain  a  license  under  Enzon's  SCA  patents   in   order  to
commercialize any such product.  There can be no assurance, however, that  this
will  prove  to  be  the  case.   Rapid technological development by others may
result in the Company's products becoming  obsolete before the Company recovers
a  significant  portion  of  the  research, development  and  commercialization
expenses incurred with respect to those  products.   Enzon  believes  that  the
experience of certain of its personnel in protein research, and its patents and
proprietary  know-how may provide it with a competitive advantage in its field;
however, there  can  be  no assurance that the Company will be able to maintain
such a competitive advantage,  should it exist, in view of the greater size and
resources of many of its competitors.   Other  drugs  or  treatment  modalities
which are currently available or that may be developed in the future, and which
treat  the same diseases as those which the Company's products are designed  to
treat, may be competitive with the Company's products.

      POTENTIAL  PRODUCT  LIABILITY.   The use of the Company's products during
testing  or  after regulatory approval entails  an  inherent  risk  of  adverse
effects which  could  expose  the  Company  to  product  liability claims.  The
Company maintains product liability insurance coverage in  the  total amount of
$5,000,000  for claims arising from the use of its products in clinical  trials
prior to FDA approval and for claims arising from the use of its products after
FDA approval.   There  can  be  no  assurance  that the Company will be able to
maintain its existing insurance coverage or obtain  coverage for the use of its
other products in the future.  Management believes that  the  Company maintains
adequate  insurance  coverage for the operation of its business at  this  time;
however, there can be  no  assurance  that  such  insurance  coverage  and  the
resources of the Company would be sufficient to satisfy any liability resulting
from product liability claims.

      DIVIDEND  POLICY  AND RESTRICTIONS.  The Company has paid no dividends on
its Common Stock since its  inception and does not plan to pay dividends on its
Common Stock in the foreseeable  future.   Except as may be utilized to pay the
dividends payable on the Company's Series A Preferred Stock, any earnings which
the Company may realize will be retained to  finance the growth of the Company.
In addition, the terms of the Series A Preferred  Stock restrict the payment of
dividends on other classes and series of stock.  The  holders  of  the Series B
Preferred Stock are not entitled to dividends.

      POSSIBLE  VOLATILITY OF STOCK PRICE.  Since the Company's initial  public
offering, the market  price of the Company's Common Stock has fluctuated over a
wide range and it is likely  that  the price of the Common Stock will fluctuate
in the future.  Announcements regarding  technical innovations, the development
of   new   products,  the  status  of  corporate  collaborations   and   supply
arrangements,  regulatory  approvals,  patent  or  proprietary  rights or other
developments by the Company or its competitors could have a significant  impact
on  the  market  price  of the Common Stock.  Since the Conversion Price of the
Preferred Shares is based  upon the Average Market Price (subject to adjustment
upon the occurrence of a Triggering  Event),  a  significant  reduction  in the
Average  Market Price could cause an increase in the number of shares of Common
Stock  issuable   upon  conversion  of  the  Preferred  Shares.   See  "Selling
Stockholders."

      REGISTRATION  RIGHTS  AND  SALES  PURSUANT  TO RULE 144.  The Company had
27,430,800  shares of Common Stock outstanding as of  February  15,  1996.   Of
these  outstanding  shares,  approximately  3,417,379  shares  are  "restricted
securities"  as  defined  in  Rule  144  under  the  Securities  Act.  Of these
restricted securities, an aggregate of 1,094,890 are Outstanding Common  Shares
and  covered  by  the  registration  statement of which this Prospectus forms a
part, approximately 1,375,000 were eligible  to be sold pursuant to Rule 144 as
of February 15, 1996, and approximately 2,042,379  (including  the  Outstanding
Common Shares) will become eligible to be sold pursuant to Rule 144 on  various
dates  commencing  March  31,  1997  through  June 30, 1998.  The (i) 1,094,890
shares of restricted Common Stock included in this registration statement which
are the Outstanding Common Shares will, if sold  pursuant  to this registration
statement,  and  (ii)  3,265,773  shares  of  Common  Stock  included  in  this
registration statement which are Common Shares Underlying Preferred Shares, the
Warrant Shares and the Additional Shares will, if issued upon conversion of the
Preferred Shares, exercise of the Warrants and the occurrence  of  any  of  the
Triggering  Events,  respectively,  and  sold  pursuant  to  this  registration
statement,  be  freely tradeable without restriction under the Securities  Act,
except that any shares  held  by  an "affiliate," as that term is defined under
the Securities Act, will be subject  to certain resale limitations of Rule 144.
The  Selling Stockholders have certain  registration  rights  pursuant  to  the
Registration  Rights  Agreement  with respect to the Outstanding Common Shares,
the Common Shares underlying the Preferred  Shares,  the Warrant Shares and the
Additional Shares.  See "Selling Stockholders."  The registration  statement of
which this Prospectus forms a part has been filed by the Company on  behalf  of
the  Selling  Stockholders  to comply with certain of its obligations under the
Registration Rights Agreement.

      As of February 15, 1996  there  were  outstanding:  (i)  the  Warrants to
purchase   638,686   Warrant  Shares;  (ii)  the  Preferred  Shares  which  are
convertible into up to  2,503,912  Common  Shares  Underlying  Preferred Shares
(which number of shares could increase if there were a significant reduction in
the  Average Market Price or if the duration of the Triggering Events  exceeded
three  months  (See  "Selling  Stockholders"));  (iii) the right of the Selling
Stockholders under the Registration Rights Agreement to be issued up to 123,175
Additional Shares in the event any Triggering Events  occur  (which  number  of
shares  could  increase if the duration of the Triggering Events exceeded three
months (See "Selling  Stockholders"));  (iv) additional warrants to purchase an
aggregate of 200,000 shares of Common Stock;  (v)  109,000  shares  of Series A
Cumulative  Convertible  Preferred  Stock  (the  "Series  A  Preferred  Stock")
convertible  into  an  aggregate  of  247,727  shares of Common Stock; and (vi)
options to purchase an aggregate of 3,815,209 shares  of  Common Stock.  Of the
foregoing, warrants to purchase 150,000 shares of Common Stock  are exercisable
through  August  8, 2000 at an exercise price of $2.50 per share.   Subject  to
certain limitations,  the  holders thereof have the right to include the shares
of Common Stock underlying these  warrants  on registration statements filed by
the Company through November 2000.  Additionally,  the holders of such warrants
as to 112,500 shares of Common Stock have the right to request, on no more than
two occasions, that the Company file on their behalf  a  registration statement
to register such shares of Common Stock.  Warrants to purchase 50,000 shares of
Common  Stock were issued to the finder in the January 1996  Private  Placement
and are exercisable commencing on February 7, 1997 through February 7, 2001, at
an exercise  price  of  $4.11  per  share.  Subject to certain limitations, the
holders of these warrants have the right  to include the shares of Common Stock
underlying these warrants on registration statements  filed  by the Company and
to have such registration statements kept effective until the earlier of (a) at
least three years after the date of the expiration of all of the  warrants,  or
(b)  the  date on which (A) all of the warrants have been exercised or expired,
and (B) no  shares  of  Common  Stock  underlying such warrants are outstanding
which have not been sold pursuant to a registration statement or Rule 144.  The
247,727  shares of Common Stock underlying  the  109,000  shares  of  Series  A
Preferred  Stock  are  eligible  for  sale under Rule 144(k).  Of the 3,815,209
shares underlying the options, 2,447,614  shares  are  covered  by an effective
registration  statement  on  Form  S-8, 1,337,595 shares will be covered  by  a
registration statement on Form S-8 which  the  Company  intends  to file in the
near future.  An additional 2,614,791 shares reserved for issuance  pursuant to
options  that  may  be  granted  under the Company's Non-Qualified Stock Option
Plan, as amended, will also be covered  by  such registration statement on Form
S-8.

      For the term of the Company's outstanding  options  and  warrants,  their
holders  have  the opportunity to profit from a rise in the market price of the
Company's Common  Stock  without  assuming the risks of the business.  This may
have  an  adverse  effect  on the terms  upon  which  the  Company  can  obtain
additional capital and the market  price  of the Company's securities.  Holders
of these options and warrants are likely to  exercise  them  at a time when the
Company would be able to obtain any needed capital on terms more favorable than
those provided for by such options or warrants.

      Pursuant to a stock purchase agreement dated as of June 30, 1995 pursuant
to  which  the  Company  sold  847,489 shares of restricted Common  Stock,  the
Company gave the right to the purchaser thereunder to include its shares of the
Common Stock on registration statements  filed  by  the  Company and to request
that the Company file on its behalf registration statements  to  register  such
shares of Common Stock, each for an unlimited period of time.

      In general, under Rule 144 as currently in effect, any person (or persons
whose shares are aggregated), including affiliates, who have beneficially owned
shares  for  at  least  two  years  is entitled to sell, within any three-month
period, a number of shares that does  not  exceed the greater of one percent of
the then outstanding shares of the Company's Common Stock or the weekly trading
volume in the Company's Common Stock during  the  four calendar weeks preceding
such sale.  A person (or persons whose shares are aggregated) who is not deemed
an affiliate of the Company, and who has beneficially owned shares for at least
three years, is entitled to sell such shares under  Rule  144 without regard to
the limitations described above.

      The sale of shares of the Company's Common Stock upon exercise of options
or warrants, pursuant to registration statements required to  be  filed  by the
Company on behalf of holders of its options, warrants, or other securities,  or
pursuant to Rule 144, or even the potential of such sales might have an adverse
effect on the then current market price of the Company's securities.


                                USE OF PROCEEDS

      The  Company  will  not  receive any proceeds from the sale of the Common
Shares offered herein by the Selling  Stockholders.  If all of the Warrants are
exercised, the Company will receive estimated  gross  proceeds of approximately
$2,625,000.   The  Company intends to utilize any proceeds  received  from  the
exercise of the Warrants  primarily to fund research and development activities
and for general corporate purposes.   There can be no assurance that any of the
Warrants  will  be  exercised.   No  additional  consideration  is  payable  in
connection with the Selling Stockholders' conversion of the Preferred Shares.


                             SELLING STOCKHOLDERS

GENERAL

      Pursuant to the Securities Purchase  Agreement  the  Company  sold to the
Selling  Stockholders the 1,094,890 Common Shares, the 40,000 Preferred  Shares
and the Warrants  to  purchase  an  aggregate  of  638,686  Warrant Shares in a
private placement transaction for aggregate consideration of $7,000,000.

      The  Preferred  Shares  are  convertible  into  shares  of  Common  Stock
commencing  April 17, 1996.  The Conversion Price is 80% of the Average  Market
Price of the  Common  Stock  at  the time of conversion.  The percentage of the
Average  Market  Price which determines  the  Conversion  Price  is  adjustable
downward in the event  that,  prior  to the conversion of the Preferred Shares,
the  registration  statement of which this  Prospectus  forms  a  part  becomes
subject to a stop order,  or  the  Company  fails  to  update such registration
statement as required by the rules and regulations of the  Commission,  or  the
Company  fails to maintain a listing of the Common Stock on NASDAQ-NMS, NASDAQ-
SmallCap or  certain specified national securities exchanges (collectively, the
"Triggering  Events").    Should  any  of  the  Triggering  Events  occur,  the
percentage of the Average Market  Price  which  determines the Conversion Price
will be reduced by the number of percentage points equal to three times the sum
of the number of months during which a Triggering  Event  exists; provided that
the aggregate number of months which are the basis for such  reduction  may not
exceed  twelve.   Should  any  of  the  Triggering  Events  occur subsequent to
conversion  of the Preferred Shares but prior to the sale of the  Common  Stock
obtained upon  conversion, then upon the sale of such Common Stock, the Company
shall pay to such  holder  an  amount  equal to the Average Market Price of the
Common Stock received upon conversion ending  one  trading  day  prior  to such
conversion, multiplied by three-hundredths (.03) times the sum of the number of
months  during  which  a  Triggering  Event exists (provided that the number of
months may not exceed twelve).  Such amount  may  be paid in Common Stock based
on the Average Market Price of the Common Stock on  the  day  prior  to sale of
such  Common Stock, or cash, and the Company is required to pay such amount  in
cash if  the  Triggering  Event  which  occurred  was  the Company's failure to
maintain  the  listing  of its Common Stock on NASDAQ-NMS,  NASDAQ-SmallCap  or
certain specified exchanges.  The Preferred Shares are redeemable at the option
of the Company commencing  May  7,  1996  at  a  redemption  price  of $127 per
Preferred  Share.   The  Preferred  Shares  have  no  voting rights, except  as
required by law and except that a majority of the outstanding  Preferred Shares
is  required  to  approve  a  consolidation,  merger  or  reclassification   of
outstanding  shares  of  Common  Stock  (other  than by way of a subdivision or
reduction  of  shares)  and  the  approval  of two-thirds  of  the  outstanding
Preferred Shares is required to amend the designations,  preferences and rights
of the Preferred Shares.  The Preferred Shares will not pay  a  dividend.   The
Warrants  were  issued for no additional consideration and are exercisable at a
price of $4.11 per  share  (as  may be adjusted in accordance with the terms of
the Warrants) commencing on the earlier  of  the  date hereof or April 17, 1996
and expire on February 7, 2001.

      In connection with the Securities Purchase Agreement, the Company and the
Selling  Stockholders  entered  into the Registration  Rights  Agreement  which
provides for the issuance of the  Additional Shares to the Selling Stockholders
upon the occurrence of any of the Triggering  Events.  The number of Additional
Shares issuable to the Selling Stockholders upon the occurrence of a Triggering
Event is equal to $3,749,998 multiplied by three-hundredths (.03) times the sum
of the number of months during which a Triggering  Event  exists (provided that
the aggregate number of months may not exceed twelve), divided  by  the Average
Market Price of the Company's Common Stock on the trading day prior to the date
sales  can resume pursuant to the registration statement covering the  sale  of
such shares.   Pursuant  to  the Registration Rights Agreement, the Company has
the right to pay to the Selling  Stockholders  cash  in  lieu of the Additional
Shares,  however,  if  the  Triggering Event which occurred was  the  Company's
failure to maintain the listing  of  its  Common  Stock  on NASDAQ-NMS, NASDAQ-
SmallCap or certain specified exchanges, then the Company  is  required  to pay
cash in lieu of the Additional Shares.

      Pursuant to the Registration Rights Agreement, the Company agreed to file
a  registration  statement  on  Form  S-3  covering  the  sale  by  the Selling
Stockholders  of  the Common Shares, the Common Shares Underlying the Preferred
Shares,  the Warrant  Shares  and  the  Additional  Shares.   The  registration
statement  of  which this Prospectus forms a part has been filed by the Company
to fulfill this  obligation  to the Selling Stockholders under the Registration
Rights Agreement.  Subject to certain limitations, the Company is also required
to include the Outstanding Common  Shares,  the  Common  Shares  Underlying the
Preferred Shares, the Warrant Shares and the Additional Shares on  registration
statements  which  may  be filed by the Company in the future.  The Company  is
required to maintain the  effectiveness  of the registration statement of which
this  Prospectus  forms  a  part,  and any subsequent  registration  statements
covering  the  sale of the Common Shares,  the  Common  Shares  Underlying  the
Preferred Shares,  the  Warrant  Shares  and  the  Additional Shares, until the
earlier of (i) at least three (3) years after the date of the expiration of all
the  Warrants,  or  (ii) the date on which (a) all of the  Warrants  have  been
exercised or have expired,  (b)  no  securities  entitled to be included on the
registration statement are held by the Selling Stockholders  or  any transferee
thereof, and (c) none of the Preferred Shares is outstanding.

      The Selling Stockholders may not convert the Preferred Shares or exercise
the  Warrants  or  have  the  Additional  Shares issued to them in the event  a
Triggering  Event  occurs  if  as  a  result of such  conversion,  exercise  or
issuance,  the  shares  of  Common  Stock beneficially  owned  by  the  Selling
Stockholders would exceed 4.9% of the outstanding shares of Common Stock.

      The Company has agreed to indemnify  each  of  the  Selling  Stockholders
against any liabilities, under the Securities Act or otherwise, arising  out of
or based upon any untrue or alleged untrue statement of a material fact in  the
registration statement or this Prospectus or by any omission of a material fact
required  to be stated therein except to the extent that such liabilities arise
out of or are  based upon any untrue or alleged untrue statement or omission in
any information furnished in writing to the Company by the Selling Stockholders
expressly for use  in  the  registration statement.  Insofar as indemnification
for liabilities arising under the Securities Act may be permitted to directors,
officers or persons controlling  the  Company  pursuant  to  its certificate of
incorporation and by-laws, the Company has been informed that in the opinion of
the Securities and Exchange Commission such indemnification is  against  public
policy as expressed in the Act and is therefore unenforceable.

      In connection with the registration of the shares of Common Stock offered
hereby,  the  Company  will supply prospectuses to the Selling Stockholders and
use its best efforts to qualify the Common Shares for sale in states reasonably
designated by the Selling Stockholders.

      Pursuant to the Securities Purchase Agreement, the Company also agreed to
use its best efforts to  effect a one for two reverse split of its Common Stock
as soon as practicable, provided that it is not obligated to effect the one for
two reverse split earlier than its next annual meeting of stockholders.


STOCK OWNERSHIP

      The table below sets forth the number of shares of Common Stock (i) owned
beneficially by each Selling  Stockholder  prior  to  the Offering based on the
Average Market Price of the Common Stock on March 4, 1996;  (ii)  being offered
by  each  Selling  Stockholder  pursuant to this Prospectus; (iii) to be  owned
beneficially by each Selling Stockholder  after  completion  of  the  offering,
assuming  that  all of the Common Shares offered hereby are sold; and (iv)  the
percentage to be  owned  by  each  Selling  Stockholder after completion of the
offering,  assuming  that all of the Common Shares  offered  hereby  are  sold.
Other than the transactions  described herein, none of the Selling Stockholders
has had any material relationship with the Company during the past three years.

<TABLE>
<CAPTION>
                                                                         Number of Shares to
                                                                        be Owned Beneficially      Percentage of
                                    Number of                             After Completion     Outstanding Shares to
                               Shares Beneficially                           OF OFFERING       be Owned Beneficially
                                   Owned Prior           Number of                               After Completion
                                   TO OFFERING            Shares                                    OF OFFERING(1)
  SELLING STOCKHOLDER                                     OFFERED
<S>                           <C>                   <C>                 <C>                   <C>
GFL Advantage Fund Ltd.             1,417,594(2)        1,417,594(2)                     0               0
GFL Performance Fund Ltd.           1,368,613(3)        1,368,613(3)                     0               0
</TABLE>


(1)   Based upon shares of Common Stock outstanding as of March 4, 1996.

(2)   Includes 1,052,631 Common  Shares  Underlying  the  Preferred  Shares and
      364,963  Warrant  Shares.   To the extent Additional Shares, if any,  are
      issued to the Selling Stockholder  as  the  result of the occurrence of a
      Triggering Event, the "Number of Shares Beneficially  Owned  Prior to the
      Offering"  and  the  "Number  of  Shares  Offered"  will  be adjusted  by
      supplementing this Prospectus.

(3)   Includes 1,094,890 Outstanding Common Shares and 273,723 Warrant  Shares.
      To  the  extent  Additional  Shares,  if  any,  are issued to the Selling
      Stockholder as the result of the occurrence of a  Triggering  Event,  the
      "Number  of  Shares  Beneficially  Owned  Prior  to the Offering" and the
      "Number  of  Shares  Offered"  will  be  adjusted  by supplementing  this
      Prospectus.


                             PLAN OF DISTRIBUTION

      The  Outstanding  Common  Shares,  the  Shares Underlying  the  Preferred
Shares, the Warrant Shares and the Additional Shares,  may  be sold pursuant to
this  Prospectus  by  the  Selling  Stockholders.   These  sales may  occur  in
privately  negotiated  transactions or in the over-the-counter  market  through
brokers and dealers as agents  or to brokers and dealers as principals, who may
receive compensation in the form  of  discounts or commissions from the Selling
Stockholders or from the purchasers of  the  Common  Stock for whom the broker-
dealers may act as agent or to whom they may sell as principal,  or  both.  The
Company  has  been advised by the Selling Stockholders that they have not  made
any arrangements  relating  to  the  distribution of the shares of Common Stock
covered by this Prospectus.  In effecting  sales, broker-dealers engaged by the
Selling  Stockholders  may  arrange  for other broker-dealers  to  participate.
Broker-dealers  will  receive  commissions   or   discounts  from  the  Selling
Stockholders in amounts to be negotiated immediately prior to the sale.

      Certain  of the Selling Stockholders and any broker-dealers  who  execute
sales for the Selling  Stockholders  may  be deemed to be "underwriters" within
the meaning of the Securities Act by virtue  of  the number of shares of Common
Stock to be sold or resold by such persons or entities  or  the  manner of sale
thereof, or both.  If any of the Selling Stockholders, broker-dealers  or other
holders  were  determined  to  be  underwriters,  any  discounts or commissions
received  by  them  or  by brokers or dealers acting on their  behalf  and  any
profits received by them on the resale of their shares of Common Stock might be
deemed underwriting compensation under the Securities Act.

      The  Selling Stockholders  have  represented  to  the  Company  that  any
purchase or  sale  of  the  Common  Stock  by  them  will be in compliance with
applicable rules and regulations of the Commission.


                                 LEGAL MATTERS

      The legality of the shares of Common Stock offered hereby has been passed
on for the Company by Ross & Hardies, New York, New York.   A  member  of  this
firm  owns  approximately  19,000 shares of the Company's Common Stock.  Patent
law matters related to U.S.  Patent  No.  5,084,558 have been passed on for the
Company  by Lerner, David, Littenberg, Krumholz  and  Mentlik,  Westfield,  New
Jersey.


                                    EXPERTS

      The  consolidated financial statements of Enzon, Inc. and subsidiaries as
of June 30,  1995  and  1994 and for each of the years in the three year period
ended June 30, 1995, incorporated by reference herein have been incorporated by
reference herein and in the  Registration Statement in reliance upon the report
of   KPMG  Peat  Marwick  LLP,  independent   certified   public   accountants,
incorporated  by  reference  herein,  and  upon  the  authority of said firm as
experts in accounting and auditing.


                                     - 2 -

<PAGE>
                                    PART II

                    INFORMATION NOT REQUIRED IN PROSPECTUS


Item 14.     OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

      The following table sets forth an itemized estimate  of fees and expenses
payable  by  the Registrant in connection with the offering of  the  securities
described in this registration statement, other than underwriting discounts and
commissions.

SEC registration fee.........................................     $      7,145
Legal fees and expenses......................................     $     17,000
Accounting fees and expenses.................................     $     18,750
Miscellaneous................................................     $      8,105
Printing expenses............................................     $     10,000

                  Total......................................     $     61,000

_______________


Item 15.    INDEMNIFICATION OF DIRECTORS AND OFFICERS

      The General  Corporation  Law  of  the  State  of  Delaware  provides for
indemnification as set forth in Section 145 thereof.  The Registrant's By-laws,
as  amended  provide for indemnification of the directors and officers  of  the
Registrant against  all  costs,  expenses  and amounts of liability incurred by
them  in  connection with any action, suit or  proceeding  in  which  they  are
involved by  reason  of  their  affiliation with the Registrant, to the fullest
extent permitted by law.  The Registrant's  directors  and  officers  also have
indemnification  agreements  with the Company, which expand the indemnification
protection provided to them under the Company's By-laws.

      On  January 20, 1987, the  stockholders  approved  an  amendment  to  the
Registrant's Certificate of Incorporation which added a new Article 10 limiting
the liability  to  the  Registrant  of individual directors for breach of their
fiduciary duty of care to the Registrant.   The  effect of this amendment is to
eliminate liability of directors for monetary damage  arising  out of negligent
or   grossly   negligent   conduct,   including  such  conduct  in  acquisition
transactions.  However, liability of directors  under  the  federal  securities
laws will not be affected.


Item 16.    EXHIBITS

<TABLE>
<CAPTION>
@<<Console>><<Console>>escription                                                                Page Number or
                                                                                                Incorporation BY
                                                                                                    REFERENCE
<S>                  <C>                                                                    <C>
                3(i) Certificate of Incorporation, as amended                                                    ~~~
               3(ii) By-laws, as amended                                                                      *(4.2)
                 5.0 Opinion of Ross & Hardies regarding legality
                10.0 Employment Agreement dated March 25, 1994 with Peter G. Tombros                        #(10.17)
                10.1 Form of Change of Control Agreements dated as of January 20, 1995
                     entered into with the Company's Executive Officers                                      ~(10.2)
                10.2 Lease - 300-C Corporate Court, South Plainfield, New Jersey                           ***(10.3)
                10.3 Modification of Lease - 300-C Corporate Court, South Plainfield New                    ++(10.3)
                     Jersey
                10.4 Lease Termination Agreement dated March 31, 1995 for 20 Kingsbridge
                     Road and 40 Kingsbridge Road, Piscataway, New Jersey                                    ~(10.6)
                10.5 Option Agreement dated April 1, 1995 regarding 20 Kingsbridge Road,
                     Piscataway, New Jersey                                                                  ~(10.7)
                10.6 Form of Lease - 40 Cragwood Road, South Plainfield, New Jersey                       ****(10.9)
                10.7 Lease 300A-B Corporate Court, South Plainfield, New Jersey                              (10.10)
                10.8 Stock Purchase Agreement dated March 5, 1987 between the Company and
                     Eastman Kodak Company                                                                ****(10.7)
                10.9 Amendment dated June 19, 1989 to Stock Purchase Agreement between the
                     Company and Eastman Kodak Company                                                     **(10.10)
               10.10 Form of Stock Purchase Agreement between the Company and the
                     purchasers of the Series A Cumulative Convertible Preferred Stock                      +(10.11)
               10.11 Amendment to License Agreement and Revised License Agreement between
                     the Company and RCT dated April 25, 1985                                              +++(10.5)
               10.12 Amendment dated as of May 3, 1989 to Revised License Agreement dated
                     April 25, 1985 between the Company and Research Corporation                           **(10.14)
               10.13 License Agreement dated September 7, 1989 between the Company and
                     Research Corporation Technologies, Inc.                                               **(10.15)
               10.14 Master Lease Agreement and Purchase Leaseback Agreement dated October
                     28, 1994 between the Company and Comdisco, Inc.                                      ###(10.16)
               10.15 Amendment dated as of May 15, 1995 to Employment Agreement with Peter
                     G. Tombros                                                                            ~~(10.17)
               10.16 Stock Purchase Agreement dated as of June 30, 1995                                          ~~~
               10.17 Securities Purchase Agreement dated as of January 31, 1996                                  ~~~
               10.18 Registration Rights Agreements dated as of January 31, 1996                                 ~~~
               10.19 Warrants dated as of February 7, 1996 and issued pursuant to the
                     Securities Purchase Agreement dated as of January 31, 1996                                  ~~~
                23.1 Consent of Ross & Hardies (contained in opinion filed as Exhibit 5.0)
                23.2 Consent of KPMG Peat Marwick LLP
                23.3 Consent of Lerner, David, Littenberg, Krumholz & Mentlik (patent
                     counsel)
                23.4 Power of Attorney                                                                           ~~~

</TABLE>
<diamond-suit>Filed herewith.

*     Previously filed as an exhibit to the Company's Registration Statement on
      Form  S-2  (File  No.  33-34874)  and  incorporated  herein  by reference
      thereto.

**    Previously filed as exhibits to the Company's Annual Report on  Form 10-K
      for  the  fiscal  year  ended  June  30,  1989 and incorporated herein by
      reference thereto.

***   Previously filed as an exhibit to the Company's Registration Statement on
      Form  S-18  (File No. 2-88240-NY) and incorporated  herein  by  reference
      thereto.

****  Previously filed  as  exhibits to the Company's Registration Statement on
      Form S-1 (File No. 2-96279)  filed  with  the Commission and incorporated
      herein by reference thereto.

+     Previously filed as an exhibit to the Company's Registration Statement on
      Form S-1 (File No. 33-39391) filed with the  Commission  and incorporated
      herein by reference thereto.

++    Previously filed as an exhibit to the Company's Annual Report on Form 10-
      K  for  the  fiscal year ended June 30, 1992 and incorporated  herein  by
      reference thereto.

+++   Previously filed as an exhibit to the Company's Annual Report on Form 10-
      K for the fiscal  year  ended  June  30,  1985 and incorporated herein by
      reference thereto.

#     Previously filed as an exhibit to the Company's Current Report on Form 8-
      K dated April 5, 1994 and incorporated herein by reference thereto.

##    Previously filed as an exhibit to the Company's Registration Statement on
      Form  S-3  (File  No.  33-80790)  and incorporated  herein  by  reference
      thereto.

###   Previously filed as an exhibit to the  Company's Quarterly Report on Form
      10-Q for the quarter ended December 31,  1994  and incorporated herein by
      reference thereto.

~     Previously filed as an exhibit to the Company's  Quarterly Report on Form
      10-Q  for  the  quarter ended March 31, 1995 and incorporated  herein  by
      reference thereto.

~~    Previously filed as an exhibit to the Company's Annual Report on Form 10-
      K for the fiscal  year  ended  June  30,  1995 and incorporated herein by
      reference thereto.

~~~   Previously filed as exhibits to the Company's  Quarterly  Report  on Form
      10-Q  for the quarter ended December 31, 1995 and incorporated herein  by
      reference thereto.

~~~   Powers of attorney are contained in signatures.


Item 17.    UNDERTAKINGS

The undersigned Registrant hereby undertakes:

      (1)  to  file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement:

            (i)    To  include  any prospectus required by Section 10(a) (3) of
the Securities Act of 1933;

            (ii)  To reflect in the  prospectus  any  facts  or  events arising
after  the  effective  date  of the registration statement (or the most  recent
post-effective amendment thereof)  which,  individually  or  in  the aggregate,
represent a fundamental change in the information set forth in the registration
statement; notwithstanding the foregoing, any increase or decrease in volume of
securities offered (if the total dollar value of securities offered  would  not
exceed that which was registered) and any deviation from the low or high end of
the estimated maximum offering range may be reflected in the form of prospectus
filed  with  the  Commission  pursuant to Rule 424(b) if, in the aggregate, the
changes in the volume and price  represent  no  more  than  a 20% change in the
maximum aggregate offering price set forth in the "Calculation  of Registration
Fee" table in the effective registration statement.

            (iii)  To include any material information with respect to the plan
of distribution not previously disclosed in the registration statement  or  any
material change to such information in the registration statement:

      PROVIDED,  HOWEVER,   that  paragraphs (1)(i) and (1)(ii) do not apply if
the registration statement is on  Form  S-3  or  Form  S-8, and the information
required to be included in a post-effective amendment by  those  paragraphs  is
contained  in  the periodic reports filed by the Registrant pursuant to Section
13  or  Section  15(d)  of  the  Securities  Exchange  Act  of  1934  that  are
incorporated by reference in the registration statement.

      (2)  That, for  the  purpose  of  determining  any  liability  under  the
Securities  Act  of 1933, each such post-effective amendment shall be deemed to
be a new registration statement relating to the securities offered therein, and
the offering of such  securities at that time shall be deemed to be the initial
BONA FIDE offering thereof.

      (3)  To remove from  registration  by means of a post-effective amendment
any of the securities being registered which  remain  unsold at the termination
of the offering.

      (4)  That, for purposes of determining any liability under the Securities
Act of 1933, each filing of the Registrant's annual report  pursuant to Section
13(a)  or  Section  15(d)  of  the Securities Exchange Act of 1934  (and  where
applicable, each filing of an employee benefit plan's annual report pursuant to
Section 15(d) of the Securities  Exchange  Act of 1934) that is incorporated by
reference  in  this  Registration  Statement  shall  be  deemed  to  be  a  new
Registration  Statement relating to the securities  offered  therein,  and  the
offering of such securities at that time shall be deemed to be the initial BONA
FIDE offering thereof.

      (5)   Insofar  as  indemnification  for  liabilities  arising  under  the
Securities Act  of 1933 may be permitted to directors, officers and controlling
persons of the Registrant  pursuant  to  the foregoing provisions or otherwise,
the  Registrant has been advised that in the  opinion  of  the  Securities  and
Exchange  Commission such indemnification is against public policy as expressed
in the Act  and  is,  therefore,  unenforceable.  In the event that a claim for
indemnification  against  such liabilities  (other  than  the  payment  by  the
Registrant of expenses incurred  or  paid by a director, officer or controlling
person of the Registrant in the successful  defense  of  any  action,  suit  or
proceeding)  is  asserted  by  such  director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the  opinion  of  its  counsel  the matter  has  been  settled  by  controlling
precedent, submit to a court of appropriate  jurisdiction  the question whether
such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.



<PAGE>
                                  SIGNATURES

      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  the
Registrant  certifies that it has reasonable grounds to believe that  it  meets
all of the requirements  for  filing  on  Form  S-3  and  has  duly caused this
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly  authorized in the City of Piscataway, State of New Jersey,  on  March  6,
1996.

                                          ENZON, INC.



                                          By      /S/PETER      G.      TOMBROS

                                            Peter G. Tombros,
                                            President and Chief
                                            Executive Officer



                               POWER OF ATTORNEY

      KNOW  ALL MEN BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Peter G. Tombros and Kenneth J. Zuerblis,
his true and  lawful attorneys-in-fact and agents, each acting alone, with full
powers of substitution  and  resubstitution, for him and in his name, place and
stead, in any and all capacities,  to  sign  any  and  all  amendments  to this
Registration Statement and to file the same, with all exhibits thereto, and all
other  documents  in  connection  therewith,  with  the Securities and Exchange
Commission, granting unto said attorneys-in-fact and  agents, and each of them,
full  power  and  authority  to  do and perform each and every  act  and  thing
requisite and necessary to be done,  in and about the premises, as fully to all
intents and purposes as he might or could  do  in  person, hereby ratifying and
confirming all that said attorneys-in-fact and agents,  each  acting  alone, or
his  substitute  or  substitutes, may lawfully do or cause to be done by virtue
hereof.



<PAGE>
      Pursuant  to the  requirements  of  the  Securities  Act  of  1933,  this
Registration Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.


       SIGNATURE                     CAPACITY                     DATE

/S/PETER G. TOMBROS             President, Chief            March 6, 1996
Peter G. Tombros               Executive Officer and
                               Director (Principal
                               Executive Officer)


/S/ABRAHAM ABUCHOWSKI           Chairman of the Board       March 6, 1996
Abraham Abuchowski



/S/KENNETH J. ZUERBLIS          Vice President -            March 6, 1996
Kenneth J. Zuerblis            Finance and
                               Chief Financial
                               Officer (Principal
                               Financial Officer
                               and Principal
                               Accounting Officer)


/S/ROSINA B. DIXON              Director                    March 6, 1996
Rosina B. Dixon


                                Director                    March __, 1996
Robert LeBuhn


/S/A.M. "DON" MACKINNON         Director                    March 6, 1996
A.M. "Don" MacKinnon


/S/RANDY H. THURMAN             Director                    March 6, 1996
Randy H. Thurman




<PAGE>
                                  ENZON, INC.


                                 EXHIBIT INDEX


<TABLE>
<CAPTION>
                                                                                 LOCATION OF EXHIBIT
                                                                                 IN SEQUENTIAL
                                                                                 NUMBERING SYSTEM

          EXHIBIT NO.           DESCRIPTION
<S>                             <C>                                              <C>
              5.0               Opinion of Ross & Hardies regarding legality
             23.2               Consent of KPMG Peat Marwick LLP
             23.3               Consent of Lerner, David, Littenberg, Krumholz &
                                Mentlik (patent counsel)
</TABLE>


<PAGE>
                           March 6, 1996



Enzon, Inc.
20 Kingsbridge Road
Piscataway, NJ  08854

               Re:  Enzon, Inc.
                    REGISTRATION STATEMENT ON FORM S-3

Ladies and Gentlemen:

          You  have  requested  our  opinion  with  respect  to  the public
offering   and   sale   by   certain  selling  stockholders  (the  "Selling
Stockholders") of Enzon, Inc.,  a  Delaware  corporation  (the  "Company"),
pursuant  to  a  Registration  Statement  on  Form  S-3  (the "Registration
Statement") of up to 4,360,663 shares of the Company's common  stock,  $.01
par value per share (the "Common Stock") of which (i) 1,094,890 shares (the
"Outstanding Common Shares") are outstanding and held by one of the Selling
Stockholders;  (ii)  up  to 2,503,912 shares (the "Common Shares Underlying
the Preferred Shares") are  issuable  upon conversion of 40,000 outstanding
shares  of the Company's Series B Convertible  Preferred  Stock,  $.01  par
value per  share  (the  "Preferred  Shares")  held  by  one  of the Selling
Stockholders; (iii) 638,686 shares (the "Warrant Shares") are issuable upon
exercise of an aggregate of 638,686 warrants (the "Warrants")  held  by the
Selling  Stockholders;  and  (iv)  up  to  123,175  shares (the "Additional
Shares")  are  additional  shares  which  may  be  issued  to  the  Selling
Stockholders  only  upon  the occurrence of certain triggering  events  set
forth in the Registration Rights Agreement (as defined herein).

          In this connection  we  have  examined  the  Securities  Purchase
Agreement  dated  as of January 31, 1996 and entered into by and among  the
Company  and  the  Selling   Stockholders;  the  Company's  Certificate  of
Designations, Rights and Preferences  of  Series  B  Convertible  Preferred
Stock  filed  with  the  Secretary  of  State of the State of Delaware (the
"Certificate of Designations"); the Registration  Rights Agreement dated as
of  January  31,  1996 and entered into by and among the  Company  and  the
Selling Stockholders  (the  "Registration Rights Agreement"); the Warrants;
the Company's Certificate of  Incorporation,  as amended; the Company's By-
laws,  as  amended;  records  of applicable corporate  proceedings  of  the
Company; and such other documents  as  we  have deemed necessary as a basis
for the opinion herein expressed.  With respect to such examination we have
assumed the legal capacity to sign and the genuineness  of  all  signatures
appearing on all documents presented to us as originals, and the conformity
to  the  originals  of  all  documents  presented  to  us  as  conformed or
reproduced  copies.   With  respect  to  factual  matters relevant to  such
opinion,  we  have relied, without independent verification  thereof,  upon
certificates  of  appropriate  state  and  local  officials  and  executive
officers and responsible employees and agents of the Company.

          Based upon the foregoing, and in reliance thereon, and subject to
the limitations  and qualifications set forth herein, we are of the opinion
that:

          1.   The  Outstanding  Common  Shares  are  legally  and  validly
issued, fully paid, and non-assessable.

          2.   When  issued  and  paid for in accordance with the Warrants,
the Warrant Shares will be legally  and validly issued, fully paid and non-
assessable shares.

          3.   When  issued upon conversion  of  the  Preferred  Shares  in
accordance with the terms  of  the  Certificate of Designations, the Common
Shares Underlying the Preferred Shares  will be legally and validly issued,
fully paid and non-assessable.

          4.   When issued in accordance with the terms of the Registration
Rights Agreement, the Additional Shares will be legally and validly issued,
fully paid and non-assessable.

          We consent to the use of our name  in  the Registration Statement
and  the  related  Prospectus  under the caption "Legal  Matters",  and  we
consent to the filing of this opinion  as  an  Exhibit  to the Registration
Statement.

                              Very truly yours,


                              ROSS & HARDIES

<PAGE>
                   INDEPENDENT AUDITORS' CONSENT


The Board of Directors
Enzon, Inc.:


We consent to the use of our report incorporated herein by reference and to
the reference to our firm under the heading "Experts" in the prospectus.






New York, New York                 /S/ KPMG PEAT MARWICK LLP
March 6, 1996                      KPMG Peat Marwick LLP

<PAGE>
                        CONSENT OF COUNSEL

          We hereby consent to the reference to our firm  under the caption
"Legal Matters" in the Prospectus.




March 6, 1996


               /S/LERNER, DAVID, LITTENBERG, KRUMHOLZ & MENTLIK
               Lerner, David, Littenberg, Krumholz & Mentlik






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