XECHEM INTERNATIONAL INC
8-K, 1996-11-29
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C.  20549

                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934




Date of Report (Date of Earliest Event Reported):  November 18, 1996



                           Xechem International, Inc.
             (Exact name of Registrant as Specified in its Charter)



      Delaware                  0-23788                   22-3284803
(State of Incorporation) (Commission File No.) (IRS Employer Identification No.)



                        100 Jersey Avenue, Bldg. B, #310
                            New Brunswick, N.J. 08901
                    (Address of Principal Executive Offices)


Registrant's telephone number, including area code:      (908) 247-3300

                                        1

<PAGE>



Item 1.  Changes and Control of Registrant

      On November 18, 1996, Xechem International, Inc. (the "Company") announced
that it had  entered  into and  closed  the  initial  stage of a Stock  Purchase
Agreement  providing  for the sale to of up to 55,000  shares  of the  Company's
Class C Series 2 Convertible  Preferred  Stock for a purchase  price of $100 per
share  ($5,500,000  in the aggregate)  over  approximately  nine months.  At the
initial  closing,  The Edward A. Blech Trust  purchased 5,000 shares of Series 2
Stock for  $500,000.  Mr.  David  Blech has the right  under the Stock  Purchase
Agreement to designate the purchasers (which may include himself) to purchase an
additional  5,000 shares of Series 2 Stock on or before  December 2, 1996 (which
right has also been assigned to the Trust);  5,000 shares on or before  December
16, 1996; 7,500 shares on or before January 15, 1997; 17,500 shares on or before
February 17, 1997;  10,000  shares on or before June 2, 1997;  and a final 5,000
shares on or before July 15, 1997.  Mr.  Blech has the right to designate  third
party purchasers,  reasonably acceptable to the Company, to purchase any and all
of such shares.  The Stock  Purchase  Agreement also provides that the Company's
President and Chief Executive Officer,  Dr. Ramesh Pandey, will exchange certain
indebtedness  of the Company owed to him and the Class B 8%  Preferred  Stock of
the  Company  held by him for 13,180  shares of the  Company's  Class C Series 3
Convertible Preferred Stock at the January 1997 closing.

      The  shares  of Series 2 Stock and  Series 3 Stock  will be  automatically
converted  into the  Company's  Common  Stock upon  amendment  of the  Company's
certificate of incorporation  to authorize the issuance of sufficient  shares of
Common Stock for such conversion (or, if later,  the January 1997 closing).  The
conversion  price of the Series 2 Stock  will be $.05 per share if the  November
1996 and January 1997 purchases are  completed,  and will be $.0625 per share if
such  purchases are not completed.  The  conversion  price of the Series 3 Stock
will be $.0625 per share.  If such  conversion is effected  prior to a scheduled
closing,  the  underlying  shares of Common  Stock will be  acquired  in lieu of
acquiring  shares of Series 2 Stock or Series 3 Stock.  If all the  Series 2 and
Series 3 shares are issued and  converted  to Common  Stock,  Mr.  Blech and his
designees  will acquire  110,000,000  shares of Common Stock and Dr. Pandey will
acquire 21,088,000 shares of Common Stock. The holders of the shares of Series 2
Stock or Series 3 Stock are  entitled  to vote with the  holders  of the  Common
Stock,  casting a number of votes  per  share  equal to the  number of shares of
Common  Stock into  which the  Series 2 Stock or Series 3 Stock is  convertible.
Pursuant  to the Stock  Purchase  Agreement,  Dr.  Pandey and Mr.  Blech and his
designees  have agreed to vote or execute a written  consent to approve  such an
amendment  to  the  certificate  of  incorporation.   The  Company   anticipates
submitting such amendment for stockholder approval as soon as practicable.  As a
result of the  voting  rights of the Series 2 Stock,  The Edward A. Blech  Trust
will own  securities  entitling it to cast  approximately  49% of the  aggregate
votes  entitled  to be cast at an election of  directors  and Mr.  Blech and his
designees  collectively will be entitled to cast approximately 77% of such votes
if all transactions contemplated by the Purchase Agreement are completed.

      Pursuant to the Stock Purchase Agreement, the Company, Dr. Pandey, and Mr.
Blech have also  entered  into a  stockholders  agreement,  which,  among  other
things:  (i)  generally  prohibits  the sale of any of Dr.  Pandey's  shares  of
capital stock of the Company for a period of 5 years, except with the consent of
Mr. Blech;  (ii) provides Mr. Blech and his designees with the right to sell his
pro rata portion  (relative to the holdings of Dr.  Pandey) of any proposed sale
of shares by Dr. Pandey,  and a reciprocal  right in favor of Dr. Pandey to sell
his pro rata  portion of any shares sold by Mr. Blech and his  designees;  (iii)
requires Mr. Blech and his designees to vote for Dr. Pandey as a director of the
Company,  and to use his  efforts  to  cause  Dr.  Pandey  to  remain  Chairman,
President  and CEO of the Company;  (iv)  requires the Company and its directors
(subject to their fiduciary duties to the Company and its  stockholders) to take
such  actions  after the January  1997 closing as Mr. Blech may request to elect
his nominees to constitute a majority of the  directors of the Company;  and (v)
provides for certain  demand and piggyback  registration  rights in favor of Mr.
Blech and his designees.

      The  Company  will pay a  commission  of  $50,000  and  issue an option to
purchase  200,000  shares of Common Stock to the  investment  banking firm which
introduced Mr. Blech to the Company.

      The Company has  received an opinion  from The Griffing  Group,  Inc.,  an
independent  valuation  and financial  advisory  firm, as to the fairness of the
above  transactions,  from a financial point of view, to the shareholders of the
Company.

Item 5.  Other Events.


                                         2

<PAGE>



      As  previously  reported  on August 29,  1996,  the  Company  and its then
wholly-owned  subsidiary,   XetaPharm,   Inc.  ("XetaPharm"),   entered  into  a
Memorandum  of  Understanding  (the  "MOU")  with  Petron  International,   Inc.
("Petron"),  wherein  Petron  agreed to  purchase  96 shares of common  stock of
XetaPharm (48.98% of the shares to be outstanding) for a total of $500,000.  The
MOU provides that Petron will pay for the XetaPharm  shares as follows:  $50,000
on or before  September  5, 1996;  $100,000 on September  30, 1996;  $150,000 on
October 30, 1996;  and $200,000 on November 30, 1996. The Company agreed to make
its existing facility and personnel  available to XetaPharm at a cost of $25,000
per month for twelve months ending August 31, 1997.

      After each payment,  Petron would receive that number of XetaPharm  shares
for which full payment has been made.

      In the MOU,  Petron  also  agreed  to  purchase  1,250,000  shares  of the
Company's  Common  Stock for a total of $500,000.  The MOU provides  that Petron
will pay for the Company's shares as follows:  $50,000 on or before September 5,
1996 and $50,000 on the first day of each of the  following  nine months.  After
each payment,  Petron would receive that number of shares for which full payment
had been made.  Petron had  granted the  Company an option to  repurchase  up to
250,000 of such shares any time  before  August 29, 1999 at a price of $0.75 per
share.

      On September 5, 1996,  XetaPharm and the Company each received the initial
payment of $50,000.  Petron  defaulted  on its payments of $100,000 to XetaPharm
due September 30, 1996 and $50,000 to the Company due October 1, 1996.

      On October 14, 1996, the Company,  notified Petron that due to non-payment
of amounts due under the MOU, the MOU was terminated.

      Petron now owns 125,000  shares of the Company's  Common Stock and an 8.3%
minority interest in XetaPharm.

      Petron  subsequently  advised  the  Company  that it wished to return  its
purchased shares for its investment amount. The Company is evaluating whether to
accept such offer,  to  exercise  its option to purchase  back the shares of the
Company's Common Stock, or take other action.



                                         3

<PAGE>



                                     SIGNATURES

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

                                    Xechem International, Inc.



                               By:          /s/ Dr. Ramesh C. Pandey
                                   Dr. Ramesh C. Pandey, President and Chief
                                    Executive Officer




Dated:  November 21, 1996






                                         4

<PAGE>






                            STOCKHOLDERS AGREEMENT

      AGREEMENT,  dated November 18, 1996, among Xechem  International,  Inc., a
Delaware corporation (the "Company"); David Blech (the "Purchaser");  and Ramesh
C. Pandey ("Pandey").

      WHEREAS, Pandey is the principal stockholder of the Company;

      WHEREAS, pursuant to a Stock Purchase Agreement (the "Purchase Agreement")
among the Company,  the Purchaser,  and Pandey,  the Purchaser and Pandey are on
and after the date hereof  acquiring  certain shares of the capital stock of the
Company; and

      WHEREAS,   Pandey  and  the   Purchaser   desire  to  provide   reasonable
restrictions  upon the transfer of shares of such capital  stock and to agree to
vote such shares in accordance with this Agreement;

      NOW, THEREFORE, it is hereby agreed as follows:

      I     Certain Definitions.  For purposes of this Agreement, the following
 terms shall have
the meanings indicated:

      1.1.  Common Shares.  "Common Shares" shall mean shares of the Company's
 Common
Stock, par value $.00001 per share.

      1.2.  Dispose Of.  "Dispose Of" shall mean pledge, hypothecate, give away,
 sell, grant anoption with respect to, or otherwise transfer, other than
 pursuant to a plan of 
merger or
consolidation, to anyone, whether or not he is then a Stockholder.  The term 
"Disposition" shall have
a correlative meaning.

      1.3.  Eligible Holders.  "Eligible Holders" shall mean holders of
 Registrable Securities.

      1.4.  Exchange Act.  "Exchange Act" shall mean the Securities Exchange 
Act of 1934, as
amended.

      1.5. Family Donee. "Family Donee" with respect to a Stockholder shall mean
(a) any parent, child, descendant, or sibling of the Stockholder,  the spouse of
any  of  the  foregoing,  or  the  spouse  of the  Stockholder;  (b)  any  trust
established  by  the  Stockholder,  or any  trustee,  custodian,  fiduciary,  or
foundation  which will hold the shares of Shares for charitable  purposes or for
the  benefit  of the  Stockholder  or any of the  persons  described  in Section
1.5(a);  and (c) committees,  guardians,  or other legal  representatives of the
Stockholder or of any of the persons described in Section 1.5(a).



<PAGE>



      1.6.  Majority Holders.  "Majority Holders" shall mean stockholders who 
hold (or would
hold, if all Purchaser Shares were converted to Common Shares) a majority of the
 
Registrable Securities.

      1.7.  Pandey Stockholders.  "Pandey Stockholders" shall mean Pandey and 
all persons who
obtain Shares from Pandey or another Pandey Stockholder in accordance with
Section 2.1(b).

      1.8.  Public Transaction.  "Public Transaction" shall mean any 
Dispositionof Shares in anopen market broker's or underwritten transaction, 
hether pursuant to an offering registered under
the Securities Act or pursuant to Rule 144 under the Securities Act.

      1.9.  Purchaser Shares.  "Purchaser Shares" shall have the meaning as
 defined in the
Purchase Agreement.

      1.10. Purchaser Stockholders.  "Purchaser Stockholders" shall mean the
 Purchaser, any
other person who acquires Purchaser Shares pursuant to the Purchase Agreement,
 and any person
who acquires Shares from another Purchaser Stockholder other than in a Public 
Transaction.

      1.11. Registrable Securities.  "Registrable  Securities" at any time shall
mean then  outstanding  or  reserved  for  issuance  Common  Shares  (or, if the
Amendment  (as defined in the Purchase  Agreement) is not filed by July 1, 1997,
shares of Series 2 Stock) which are Purchaser  Shares or  underlying  Conversion
Shares (as  defined in the  Purchase  Agreement)  and which (i) are owned by (or
issuable  upon   conversion   of  Purchaser   Shares  owned  by)  the  Purchaser
Stockholders  and (ii) are not then eligible for  immediate  sale pursuant to an
effective  registration  statement  under  the  Securities  Act or  pursuant  to
paragraph (k) of Rule 144 under the Securities Act.

      1.12. SEC.  "SEC" shall mean the Securities and Exchange Commission.

      1.13. Securities Act.  "Securities Act" shall mean the Securities Act of
 1933, as amended.

      1.14. Shares.  "Shares" shall mean all shares of capital stock of the
 Company, including
Common Shares.

      1.15. Stockholder.  "Stockholder" shall mean any person, other than the
Company, who is
or becomes a party to this Agreement.


      II    Restrictions on Transfer

      2.1.  Permitted  Transfer(a)  No Pandey  Stockholder  shall Dispose Of any
Shares  without the consent of the  Purchaser,  except as  permitted  by Section
2.1(b) or the last  sentence of Section  2.2.  Any other  purported  disposition
shall be void.


                                      2

<PAGE>



      (b) Notwithstanding Section 2.1(a), any Pandey Stockholder may at any time
and from time to time (i)  Dispose  Of all or a part of his Shares to (A) one or
more of his  Family  Donees if each such  Family  Donee  becomes a party to this
Agreement upon  acquisition  of such Shares or (B) any other Pandey  Stockholder
who is a party to this Agreement or (ii) pledge Shares if the pledgee agrees not
to seek the  transfer of such Shares (on  foreclosure  or  otherwise)  except in
accordance with Section 2.1(a). Any Pandey  Stockholder  effecting a Disposition
pursuant to this  Section  2.1(b)  shall give  immediate  notice  thereof to the
Purchaser,  including  the name and address of the  recipient of the Disposed Of
Shares and a copy of such  transferee's  agreement as required  pursuant to this
Section 2.1(b).

      2.2. Tag-Along.  If (a) any Pandey Stockholder shall propose to Dispose Of
any  Shares  other  than  pursuant  to  Section  2.1(b),  or (b)  any  Purchaser
Stockholder  shall  propose to  Dispose Of any  Shares,  such  Stockholder  (the
"Selling   Stockholder")  shall  give  notice  (a  "Notice")  of  such  proposed
Disposition  to  the  Purchaser,   if  the  Selling   Stockholder  is  a  Pandey
Stockholder,  or Pandey, if such Selling Stockholder is a Purchaser Stockholder,
describing  the proposed  Disposition.  If such  Disposition is a sale of Common
Shares other than  pursuant to a Public  Transaction,  then,  in addition to the
requirements   of  Section  2.1  (if  the  Selling   Stockholder   is  a  Pandey
Stockholder),   the  Purchaser   Stockholders   collectively   (if  the  Selling
Stockholder is a Pandey Stockholder) or the Pandey Stockholders collectively (if
the Selling Stockholder is a Purchaser  Stockholder) (the Purchaser Stockholders
collectively, or any of them, or the Pandey Stockholders collectively, or any of
them,  as the case may be,  being the  "Tagging  Stockholders")  shall  have the
right,  by giving  notice (a "Tag- Along  Notice")  to the  Selling  Stockholder
within 10 days of the  Notice,  to sell,  on the terms and to the  transferee(s)
described in the Notice, a number of Common Shares equal to the number of Common
Shares  then held by the  Tagging  Stockholders  multiplied  by a fraction  (the
"Fraction"),  the numerator of which is the number of Common Shares  proposed to
be sold by such Selling  Stockholder  and the denominator of which is the number
of Common Shares held by all Pandey  Stockholders (if the Selling Stockholder is
a Pandey Stockholder) or Purchaser Stockholders (if the Selling Stockholder is a
Purchaser  Stockholder)  at  the  date  of  the  Notice;  and,  if  the  Tagging
Stockholders give a Tag-Along Notice,  such Selling Stockholder shall not effect
such Disposition  unless the Tagging  Stockholders are afforded such opportunity
to sell such portion of their Common  Shares.  Any notice given by Pandey or the
Purchaser  pursuant  to this  Section  2.2 shall be deemed  given by all  Pandey
Stockholders  or  Purchaser  Stockholders,  respectively;  and,  if  the  Pandey
Stockholders or Purchaser  Stockholders  are entitled to sell shares pursuant to
this  Section  2.2,  the shares to be sold shall be  allocated  among the Pandey
Stockholders  or Purchaser  Stockholders,  as the case may be, in  proportion to
their holdings of shares of Common Stock, or as they may otherwise agree. In the
case  of  a  Disposition  by  a  Purchaser  Stockholder  pursuant  to  a  Public
Transaction, then, notwithstanding Section 2.1(a), each Pandey Stockholder shall
be entitled to sell the Fraction of his shares of Common Stock, on such terms as
such Pandey Stockholder may obtain.

      2.3. Termination. The provisions of this Article II shall terminate on the
earliest of (a) the fifth anniversary of the date hereof,  (b) the date, if any,
on which the  Purchaser  or Pandey  shall  have  defaulted  on any of its or his
obligations under Section 1.1 of the Purchase Agreement (provided, that (i) only
a party's rights, but not its or his obligations, shall terminate as a result of
such a default and

                                      3

<PAGE>



(ii) such termination shall not take effect until the non-defaulting  parties or
party have  afforded the  defaulting  party or parties at least 15 business days
notice of and  opportunity to cure such default),  and (c) the date on which the
Purchaser Stockholders or Pandey Stockholders beneficially own (as determined in
accordance  with Section 13(d) of the Exchange Act and the rules and regulations
thereunder) less than 10% of the outstanding Common Shares.


      III   Voting Agreement

      3.1.  Voting.  (a) Subject to any fiduciary  obligations it may have, each
Purchaser  Stockholder  agrees  to vote all  Shares  beneficially  owned by such
Purchaser  Stockholder  for the election of Pandey as a director of the Company,
and, further,  to use his or its best efforts to cause Pandey to be named as the
Chairman of the Board,  President,  and Chief Executive  Officer of the Company.
The Purchaser and each subsequent Purchaser Stockholder agrees not to Dispose Of
any  Shares to any  person  (other  than in a Public  Transaction)  unless  such
transferee   agrees  to  become  a  party  to  this  Agreement  as  a  Purchaser
Stockholder, and a copy of such agreement is provided to Pandey.

      (b) The provisions of this Section 3.1 shall  terminate on the earliest of
(i) the date on which Pandey is  discharged  from the employ of the Company "for
cause" (as such term is  defined in the  Employment  Agreement,  dated  February
1994,  between  Pandey and the Company),  (ii) the date, if any, on which Pandey
shall have defaulted on any of his obligations under Section 1.1 of the Purchase
Agreement  (provided,  that such  termination  shall not take  effect  until the
Purchaser  has  afforded  Pandey  at  least  15  business  days  notice  of  and
opportunity  to  cure  such  default),  and  (iii)  the  date  on  which  Pandey
beneficially  owns  (as  determined  in  accordance  with  Section  13(d) of the
Exchange  Act and the rules  and  regulations  thereunder)  less than 10% of the
outstanding Common Shares.

      3.2.  Directors.  (a)  Following  the Fourth  Closing  (as  defined in the
Purchase  Agreement),  the Company,  Pandey,  and, by their signature at the end
hereof,  each other  current  director of the Company  agrees  (subject to their
fiduciary duties to the Company and its  stockholders) to from time to time take
such action as the Purchaser shall request from time to time (including, without
limitation,   calling  and  holding  meetings  of  the  Board  of  Directors  or
stockholders of the Company and amending the By-laws of the Company) to cause to
be elected as directors of the Company such nominees of the  Purchaser,  in such
number, as the Purchaser shall request.

      (b) The provisions of this Section 3.2 shall  terminate on the earliest of
(i) the fifth  anniversary  of the date hereof,  (ii) the date, if any, on which
the Purchaser shall have defaulted on any of its  obligations  under Section 1.1
of the Purchase Agreement (provided, that such termination shall not take effect
until Pandey has afforded the  Purchaser at least 15 business days notice of and
opportunity to cure such default),  (iii) the date, if any, on which nominees of
the Purchaser constitute a majority of the Board of Directors, and (iv) the date
on which the Purchaser beneficially owns (as

                                      4

<PAGE>



determined  in  accordance  with Section 13(d) of the Exchange Act and the rules
and regulations thereunder) less than 50% of the outstanding Common Shares.


      IV    Registration Rights

      4.1. Request for Registration.  (a) Subject to Sections 4.1(b) and (c), if
the Company shall receive a written  request  (specifying  that it is being made
pursuant  to this  Article IV) from  Majority  Holders  that the Company  file a
registration  statement under the Securities Act covering the registration of at
least 5% of the Registrable  Securities,  the Company shall, within ten business
days of the receipt thereof, give written notice of such request to all Eligible
Holders and shall file as soon as  practicable,  and in any event within 60 days
of the receipt of such request,  a registration  statement  under the Securities
Act covering all Registrable Securities which the Eligible Holders request to be
registered within 30 days of the mailing of such notice to all Eligible Holders.

      (b) Notwithstanding the foregoing,  (i) the Company shall not be obligated
to effect a registration pursuant to this Section 4.1 during the period starting
with the date 60 days prior to the  Company's  estimated  date of filing of, and
ending on a date six months  following  the  effective  date of, a  registration
statement  pertaining to an  underwritten  public offering of securities for the
account of the Company,  provided that the Company is actively employing in good
faith all  reasonable  efforts to cause such  registration  statement  to become
effective  and  that  the  Company's   estimate  of  the  date  of  filing  such
registration  statement is made in good faith; (ii) if the Company shall furnish
to the Eligible  Holders  initiating  the  registration  request  hereunder (the
"Initiating  Eligible  Holders") a  certificate  signed by the  President of the
Company  stating  that in the good faith  judgment of the Board of  Directors it
would  be  materially  detrimental  to the  Company  or its  stockholders  for a
registration  statement  to be  filed  in the near  future,  then the  Company's
obligation to file a registration  statement  shall be deferred for a period not
to exceed six months;  provided,  however,  that the Company may furnish  such a
certificate  to  Initiating  Eligible  Holders  only once in any  one-year  time
period; and (iii) if the managing underwriter of an underwritten  offering to be
made  pursuant to this Section 4.1 advises the  Initiating  Eligible  Holders in
writing that marketing  factors  require a limitation of the number of shares to
be  underwritten,  then the  Initiating  Eligible  Holders  shall so advise  all
Eligible  Holders whose  Registrable  Securities would otherwise be underwritten
pursuant hereto, and the number of shares of Registrable  Securities that may be
included in the  underwriting  shall be  allocated  among all  Eligible  Holders
thereof in  proportion  to the amount of  Registrable  Securities  owned by each
Eligible Holder.

      (c) The  Company  shall be  obligated  to  effect  only two  registrations
pursuant to this Section 4.1.

      4.2.  "Piggyback"  Registration.  (a) Subject to Section 4.2(b), if at any
time  the  Company  determines  to  register   (including  for  this  purpose  a
registration  effected by the Company for  stockholders  other than the Eligible
Holders)  any Common  Shares under the  Securities  Act in  connection  with the
public  offering  of such  securities  solely for cash on an SEC Form that would
also

                                      5

<PAGE>



permit the registration of the Registrable  Securities (other than Forms S-4 and
S-8),  the Company shall  promptly give each Eligible  Holder  written notice of
such  determination.  Upon the written  request of each  Eligible  Holder  given
within 20 days after  mailing of any such  notice by the  Company,  the  Company
shall,  subject to the  provisions  of this Section 4.2,  cause to be registered
under  the  Securities  Act all of the  Registrable  Securities  that  each such
Eligible Holder has requested be registered;  provided however, that the Company
shall not be  required  to proceed  with such  registration  if the  offering is
abandoned in its entirety and no other securities are offered for sale.

      (b) In connection  with any offering  involving an  underwriting of shares
being  issued by the  Company,  the  Company  shall not be  required  under this
Section  4.2  to  include  any of  the  Eligible  Holders'  securities  in  such
underwriting  unless  they accept the terms of the  underwriting  as agreed upon
between the Company and the  underwriters  selected by it, and then only in such
quantity as will not, in the reasonable opinion of the underwriters,  jeopardize
the success of the offering by the Company.  If the total amount of  securities,
including  Registrable  Securities,  requested by the Eligible Holders and other
stockholders  having registration rights to be included in such offering exceeds
the  amount  of  securities  to be  sold  other  than  by the  Company  (or  the
stockholders  initiating  the  registration)  that the  underwriters  reasonably
believe  compatible with the success of the offering,  then the Company shall be
required  to  include  in the  offering  only that  number  of such  securities,
including  Registrable  Securities,  which  the  underwriters  believe  will not
jeopardize the success of the offering.  In such event, the securities requested
to be  included  which are  excluded  shall be  apportioned  pro rata  among the
Eligible Holders and, to the extent permitted by the contractual rights of other
selling  stockholders,  all other prospective selling stockholders  according to
the total amount of  securities  requested to be included  therein owned by each
such Eligible Holder and other selling  stockholder or in such other proportions
as shall  mutually be agreed to by such Eligible  Holders and such other selling
stockholders.

      4.3.  Obligations of the Company.  Whenever required under this Article IV
to effect the registration of any Registrable Securities,  the Company shall, as
expeditiously as reasonably possible:

            (a)  Prepare  and file with the SEC a  registration  statement  with
      respect to such Registrable Securities and use its commercially reasonable
      efforts to cause such  registration  statement to become  effective,  and,
      upon  the  request  of  the  holders  of a  majority  of  the  Registrable
      Securities  registered  thereunder,  to keep such  registration  statement
      effective for up to 90 days.

            (b) Prepare and file with the SEC such amendments and supplements to
      such  registration  statement and the prospectus  used in connection  with
      such  registration  statement  as may be  necessary  to  comply  with  the
      provisions of the  Securities  Act with respect to the  disposition of all
      securities covered by such registration statement.

            (c)  Furnish to the  Eligible  Holders  such  numbers of copies of a
      prospectus,  including a preliminary  prospectus,  in conformity  with the
      requirements of the Securities Act,

                                      6

<PAGE>



      and such other documents as they may reasonably  request to facilitate the
      disposition of Registrable Securities owned by them.

            (d) Use its commercially  reasonable efforts to register and qualify
      the securities  covered by such  registration  statement  under such other
      securities  or blue sky laws of such  jurisdictions  as shall be necessary
      for  the  Eligible  Holders  to  dispose  of the  Registrable  Securities,
      provided that the Company shall not be required in connection therewith or
      as a  condition  thereto to qualify  to do  business  or to file a general
      consent to service of process or subject  itself to  taxation  in any such
      states or jurisdictions.

            (e) Enter into and perform  its  obligations  under an  underwriting
      agreement, in usual and customary form, with the managing underwriter,  if
      any,  of  such  offering.  Each  Eligible  Holder  participating  in  such
      underwriting  shall also enter into and perform its obligations under such
      an agreement.

            (f) Notify each Eligible Holder of Registrable Securities covered by
      such registration statement at any time when a prospectus relating thereto
      is required to be delivered  under the  Securities Act of the happening of
      any  event  as  a  result  of  which  the  prospectus   included  in  such
      registration statement, as then in effect, includes an untrue statement of
      material  fact or omits to state a  material  fact  required  to be stated
      therein or necessary to make the statements  therein not misleading in the
      light of the circumstances then existing.

            (g)  Make  generally  available  to  its  stockholders  an  earnings
      statement satisfying the provisions of Section 11(a) of the Securities Act
      (including  by means of  satisfying  the  provisions of Rule 158 under the
      Securities  Act) as soon as  reasonably  practical  covering  the 12-month
      period  beginning  with the  first  month of the  Company's  first  fiscal
      quarter commencing after the effective date of the registration statement.

      4.4. Furnish Information.  The Company shall not be required to include in
any registration any Registrable Securities unless the holder thereof shall have
furnished to the Company such  information  regarding  itself,  the  Registrable
Securities held by it, and the intended method of disposition of such securities
as shall be required to effect the registration of the Registrable Securities.

      4.5.  Expenses  of  Registration.  All  expenses  other than  underwriting
discounts and commission  incurred in connection with any registration,  filing,
or qualification pursuant to this Article IV, including, without limitation, all
registration,  filing,  and qualification  fees,  printers' and accounting fees,
fees and  disbursements of counsel for the Company,  and the reasonable fees and
disbursements of a single counsel for the Eligible Holders and any other selling
stockholders selected by them shall be borne by the Company; provided,  however,
that  the  Company  shall  not  be  required  to pay  for  any  expenses  of any
registration  proceeding  begun  pursuant  to  Section  4.1 if the  registration
request is  subsequently  withdrawn at the request of the Eligible  Holders of a
majority of

                                      7

<PAGE>



the  Registrable  Securities to be registered  (in which case all  participating
Eligible  Holders  shall  bear  such  expenses),  unless,  at the  time  of such
withdrawal,  the Eligible  Holders have learned of a material  adverse change in
the  condition,  business or  prospects  of the  Company  from that known to the
Eligible  Holders  at the time of their  request,  in  which  case the  Eligible
Holders  shall not be required  to pay any such  expenses  and shall  retain all
rights pursuant to Section 4.1.

      4.6.  Indemnification and Contribution.  In the event any Registrable
 Securities are
included in a registration statement under this Article IV:

            (a) To the extent  permitted by law, the Company will  indemnify and
      hold harmless each Eligible Holder participating in such registration, the
      officers and directors of each such Eligible  Holder,  any underwriter (as
      defined in the Securities  Act) for such Eligible  Holder and each person,
      if any,  who  controls  such  Eligible  Holder or  underwriter  within the
      meaning of the Securities Act or the Exchange Act, against any Damages (as
      defined in the Purchase  Agreement) to which they may become subject under
      the  Securities  Act,  the  Exchange  Act, or other  federal or state law,
      insofar  as  such  Damages  arise  out of or  are  based  upon  any of the
      following   statements,   omissions   or   violations   (collectively,   a
      "Violation"):  (i) any untrue  statement or alleged untrue  statement of a
      material  fact  contained in such  registration  statement,  including any
      preliminary  prospectus  or  final  prospectus  contained  therein  or any
      amendments or supplements  thereto,  (ii) the omission or alleged omission
      to state  therein  a  material  fact  required  to be stated  therein,  or
      necessary  to make the  statements  therein not  misleading,  or (iii) any
      violation or alleged  violation by the Company of the Securities  Act, the
      Exchange  Act,  any  state  securities  law,  or any  rule  or  regulation
      promulgated  under the  Securities  Act,  the  Exchange  Act, or any state
      securities law; and the Company will reimburse each such Eligible  Holder,
      officer or director,  underwriter,  or controlling person for any legal or
      other   expenses   reasonably   incurred  by  them  in   connection   with
      investigating or defending any such action;  provided,  however,  that the
      Company  shall not be liable in any such case for any such  Damages to the
      extent that it arises out of or is based upon (x) a Violation which occurs
      in reliance  upon and in  conformity  with written  information  furnished
      expressly  for  use in  connection  with  such  registration  by any  such
      Eligible  Holder or  underwriter  or (y) any untrue  statement  or alleged
      untrue  statement  made in, or  omission  or alleged  omission  from,  any
      preliminary prospectus or final prospectus, if the final prospectus or the
      final  prospectus as amended or  supplemented,  respectively,  which shall
      have been  furnished,  to the  underwriter  or  Eligible  Holder  claiming
      indemnification,   prior  to  the  time  such   underwriter  sent  written
      confirmation  of or the  Eligible  Holder  made  such  sale to the  person
      alleging such statement, alleged statement, omission, or alleged omission,
      does not contain such statement,  alleged statement,  omission, or alleged
      omission and a copy of such final prospectus or such prospectus as amended
      or supplemented,  respectively,  shall not have been sent or given to such
      person; and provided, further, that in no case shall the Company be liable
      for amounts paid in settlement if such settlement is effected  without the
      written  consent of the Company,  which consent shall not be  unreasonably
      withheld.


                                      8

<PAGE>



            (b)  To  the  extent   permitted  by  law,  each   Eligible   Holder
      participating  in any  registration  will  indemnify and hold harmless the
      Company,  each of its directors,  each of its officers who have signed the
      registration  statement,  each controlling  person,  and any underwriters,
      against any Damages to which the  Company or any such  director,  officer,
      controlling   person,  or  underwriter  may  become  subject,   under  the
      Securities  Act, the Exchange Act, or other federal or state law,  insofar
      as such Damages arise out of or are based upon any Violation, in each case
      to the  extent  (and only to the  extent)  that such  Violation  occurs in
      reliance upon and in conformity with written information furnished by such
      Eligible Holder expressly for use in connection with such  registration or
      as a result of a circumstance  described in clause (y) of Section  4.6(a);
      and each such Eligible  Holder will  reimburse any legal or other expenses
      reasonably  incurred  by  the  Company  or  any  such  director,  officer,
      controlling  person,  or underwriter in connection with  investigating  or
      defending any such action; provided, however, that the indemnity agreement
      contained  in this  Section  4.6(b)  shall  not apply to  amounts  paid in
      settlement  if such  settlement  is  effected  without  the consent of the
      Eligible  Holder,  which  consent  shall  not  be  unreasonably  withheld;
      provided  further that, in no event shall any indemnity under this Section
      4.6(b) exceed the net proceeds from the offering received by such Eligible
      Holder.

            (c)  Promptly  after  receipt  by an  indemnified  party  under this
      Section 4.6 of notice of the  commencement  of any action  (including  any
      governmental  action),  such indemnified party will, if a claim in respect
      thereof is to be made  against any  indemnifying  party under this Section
      4.6,  deliver  to  the   indemnifying   party  a  written  notice  of  the
      commencement  thereof and the  indemnifying  party shall have the right to
      participate  in,  and,  to the extent the  indemnifying  party so desires,
      jointly with any other indemnifying party similarly noticed, to assume the
      defense  thereof  with counsel  mutually  reasonably  satisfactory  to the
      parties; provided, however, that an indemnified party shall have the right
      to retain its own  counsel,  with the fees and  expenses to be paid by the
      indemnifying  party, if  representation  of such indemnified  party by the
      counsel retained by the indemnifying  party would be inappropriate  due to
      actual or potential differing interests between such indemnified party and
      any other party represented by such counsel in such proceeding.

            (d) To  provide  for  just  and  equitable  contribution  under  the
      Securities Act in any case in which (i) any indemnified  party makes claim
      for  indemnification  pursuant to this  Section  4.6 but it is  judicially
      determined  (by the  entry of a final  judgment  or  decree  by a court of
      competent  jurisdiction and the expiration of time to appeal or the denial
      of the last right of appeal) that such indemnification may not be enforced
      in such  case  notwithstanding  the fact the  express  provisions  of this
      Section 4.6 provide for  indemnification,  or (ii) contribution  under the
      Securities Act may be required on the part of any indemnified  party, then
      the  indemnifying  party in lieu of indemnifying  such  indemnified  party
      hereunder  shall  contribute  to  the  amount  paid  or  payable  by  such
      indemnified  party as a result of such  Damages in such  proportion  as is
      appropriate to reflect the relative fault of the  indemnifying  parties on
      the one hand and of the  indemnified  parties  on the other in  connection
      with the statements or omissions which resulted in such Damages as well as
      any other relevant

                                      9

<PAGE>



      equitable  considerations.  The relative fault of the indemnifying parties
      and of the indemnified  parties shall be determined by reference to, among
      other things, whether the untrue or alleged untrue statement of a material
      fact or the  omission  to state a material  fact  relates  to  information
      supplied by the indemnifying  party, or by the indemnified  party, and the
      parties'   relative  intent,   knowledge,   access  to  information,   and
      opportunity to correct or prevent such statement or omission.

            The parties further agree that it would not be just and equitable if
      contribution  pursuant to this Section 4.6(d) were  determined by pro rata
      allocation or by any other method of  allocation  which does not take into
      account  the  equitable  considerations  referred  to in  the  immediately
      preceding paragraph. The amount paid or payable by an indemnified party as
      a result of the Damages referred to in the immediately preceding paragraph
      shall be deemed to include,  subject to the  limitations  set forth above,
      any legal or other expenses  reasonably incurred by such indemnified party
      in  connection  with  investigating  or  defending  any  action  or claim.
      Notwithstanding  the provisions of this Section 4.6(d),  in no event shall
      any  contribution  under this Section  4.6(d) exceed the net proceeds from
      the  offering  received  by such  Eligible  Holder.  No  person  guilty of
      fraudulent  misrepresentations (within the meaning of Section 11(f) of the
      Securities Act) shall be entitled to contribution  from any person who was
      not guilty of such fraudulent misrepresentation.

            (e) The  obligations of the Company and Eligible  Holders under this
      Section 4.6 shall survive the  completion  of any offering of  Registrable
      Securities.

      4.7.  Amendment of Registration  Rights.  Any provision of this Article IV
may be amended and the observance  thereof may be waived (either generally or in
a particular instance and either retroactively or prospectively),  only with the
written consent of the Company and the Majority Holders. Any amendment or waiver
effected in  accordance  with this Section 4.7 shall be binding upon each holder
of Registrable  Securities,  each future holder of all such securities,  and the
Company.


      V     Miscellaneous

      5.1.  Legend.  The following legend shall be noted conspicuously on all 
certificates
representing shares of Shares heretofore or hereafter issued which are subject 
to the terms of this
Agreement:

      "The shares represented by this certificate are subject to restrictions on
      transfer and voting,  as provided in an agreement  dated November 18, 1996
      among the Company and certain of its  stockholders,  a copy of which is on
      file with the Secretary of the Company."


                                      10

<PAGE>



Each person signing this Agreement  other than the Company agrees  severally and
not jointly to deliver to the Company,  as promptly as possible but in any event
within  ten  business  days  from  the  date  of  this  Agreement,  certificates
representing shares of Shares owned by him for legending.

      5.2.  Transfers.  The Company agrees not to effect a transfer on its books
 of any Shares
which are subject to the terms of this Agreement except in accordance with such 
terms.

      5.3.  Secretary to Retain Copy.  A copy of this Agreement shall be filed 
with the Secretary
of the Company.

      5.4.  Stock Changes.  The provisions of this Agreement shall be deemed to 
apply equally
to any Shares or other securities distributed in respect of Shares.

      5.5.  Further Actions.  At any time and from time to time each party 
agrees, at its or his
expense, to take such actions and to execute and deliver such documents as may 
be reasonably
necessary to effectuate the purposes of this Agreement.

      5.6. Availability of Equitable Remedies.  Since a breach of the provisions
of this Agreement  could not  adequately be  compensated  by money damages,  any
party shall be entitled,  in addition to any other right or remedy  available to
him, to an  injunction  restraining  such breach or a  threatened  breach and to
specific performance of any such provision of this Agreement, and in either case
no bond or other  security  shall be required in connection  therewith,  and the
parties  hereby  consent to such  injunction  and to the  ordering  of  specific
performance.

      5.7.  Modification.  This Agreement sets forth the entire understanding of
the parties with respect to the subject matter  hereof,  supersedes all existing
agreements  among them concerning such subject matter,  and may be modified only
by a written instrument duly executed by each party.

      5.8. Notices.  Any notice or other communication  required or permitted to
be given  hereunder  shall be in writing and shall be mailed by certified  mail,
return receipt  requested,  or delivered against receipt to the party to whom it
is to be given at the address of such party set forth in the Purchase  Agreement
or, in the case of a person  who  becomes a  Stockholder  after the date of this
Agreement, at the address of such party as reflected on the books and records of
the  Company  (or to such other  address as the party  shall have  furnished  in
writing in accordance  with the provisions of this Section 5.8).  Notices to the
estate of a Stockholder  shall be sufficient if addressed to the  Stockholder as
provided in this Section 5.8. Except as otherwise  specifically provided in this
Agreement,  any notice given by certified mail shall be deemed given at the time
of  certification  thereof except for a notice  changing a party's address which
shall be deemed given at the time of receipt thereof.

      5.9.  Waiver.  Any waiver by any party of a breach of any provision of
 this Agreement shall
not operate as or be construed to be a waiver of any other breach of such 
provision or of any breach
of any other provision of this Agreement.  The failure of a party to insist 
upon strict adherence to any

                                      11

<PAGE>



term of this Agreement on one or more occasions shall not be considered a waiver
or deprive that party of the right thereafter to insist upon strict adherence to
that term or any other term of this Agreement. Any waiver must be in writing.

      5.10.  Binding  Effect.  The provisions of this Agreement shall be binding
upon  and  inure  to the  benefit  of the  parties  hereto  and  the  respective
successors  and  assigns of the  corporate  parties  hereto  and the  respective
assigns,  heirs, and personal  representatives of the individual parties hereto,
and shall inure to the benefit of the indemnified parties under Article IV.

      5.11. No Third Party Beneficiaries.  This Agreement does not create, and
 shall not be
construed as creating, any rights enforceable by any person not a party to this 
Agreement (except as
provided in Section 5.10).

      5.12. Separability.  If any provision of this Agreement is invalid, 
illegal, or unenforceable,
the balance of this Agreement shall remain in effect, and if any provision is
 inapplicable to any person
or circumstance, it shall nevertheless remain applicable to all other persons
and circumstances.

      5.13. Headings.  The headings in this Agreement are solely for convenience
of reference and
shall be given no effect in the construction or interpretation of this
 Agreement

      5.14. Pronouns.  Any masculine personal pronoun shall be considered to 
mean the
corresponding feminine or neuter personal pronoun, as the context requires.

      5.15.  Counterparts;  Governing Law. This Agreement may be executed in any
number of  counterparts,  each of which shall be deemed an original,  but all of
which  together  shall  constitute  one and the  same  instrument.  It  shall be
governed by and construed in  accordance  with the laws of the State of New York
(except with respect to matters  governed by the General  Corporation Law of the
State of Delaware), without giving effect to conflict of laws.


                                      12

<PAGE>



      IN WITNESS  WHEREOF,  the parties have duly executed this  Agreement as of
the date first written above.
                           XECHEM INTERNATIONAL, INC.


                             By /s/ Ramesh C. Pandey
                                                Ramesh C. Pandey, President




                                                      /s/ Ramesh C.  Pandey
                                                      Ramesh C. Pandey



                                                       /s/ David Blech
                                                      David Blech


AGREED AS TO SECTION 3.2:


      /s/ Brian Arenare
      Brian Arenare


      /s/ Lester A. Mitscher
      Lester A. Mitscher

                                      13

<PAGE>


















                           STOCK PURCHASE AGREEMENT


                                     AMONG


                          XECHEM INTERNATIONAL, INC.,

                                 DAVID BLECH,

                                      AND

                               RAMESH C. PANDEY



                               November 18, 1996


                                      0

<PAGE>


                                                                            Page


                                TABLE OF CONTENTS

                                                                            Page

I.    The Exchanges                                                            1
      1.1.  Terms of the Exchange                                              1
      1.2.  The Closings                                                       3

II    Representations and Warranties of the Company and Pandey                 3
      2.1.  Organization and Qualification                                     3
      2.2.  SEC Reports                                                        3
      2.3.  Capitalization                                                     3
      2.4.  Litigation and Claims                                              4
      2.5.  Authority to Sell                                                  4
      2.6.  No Conflicts                                                       4
      2.7.  Valid Issuance, Etc.                                               5
      2.8.  Completeness of Disclosure                                        
III   Additional Representations and Warranties of Pandey                      5
      3.1.  Authority to Act                                                   5
      3.2.  No Conflicts                                                       5
      3.3.  Non-Distributive Intent                                            6
      3.4.  Pandey Debt and Preferred Stock                                    6
      3.5.  Completeness of Disclosure                                         6

IV    Representations and Warranties of the Purchaser                          6
      4.1.  Authority to Buy                                                   6
      4.2.  No Conflicts                                                       6
      4.3.  Non-Distributive Intent                                            7
      4.4.  Completeness of Disclosure                                         7

V     Conditions to Obligations of the Purchaser                               7
      5.1.  Accuracy of Representations and Compliance with Conditions         7
      5.2.  Opinion of Counsel                                                 8
      5.3.  Legal Action                                                       8
      5.4.  No Governmental Action                                             8
      5.5.  Contractual Consents Needed                                        8
      5.6.  Stockholders Agreement                                             8
      5.7.  Pandey Closing                                                     8
      5.8.  Consulting Agreement                                               8
      5.9.  Bankruptcy                                                         8
      5.10. Chief Executive                                                    8

VI    Conditions to the Obligations of the Company and Pandey                  9
      6.1.  Accuracy of Representations and Compliance with Conditions         9

                                        i

<PAGE>


                                                                            Page


      6.2.  Opinion of Counsel                                                 9
      6.3.  Legal Action                                                       9
      6.4.  No Governmental Action                                             9
      6.5.  Contractual Consents Needed                                        9
      6.6.  Stockholders Agreement                                             9
      6.7.  Purchaser Closing                                                  9
      6.8.  Fairness Opinion                                                   9

VII   Covenants and Agreements                                                 9
      7.1.  Advice of Changes                                                 10
      7.2.  Confidentiality                                                   10
      7.3.  Public Statements                                                 10
      7.4.  Furnish Future Information                                        10
      7.5.  Amendment                                                         10
      7.6.  Nasdaq                                                            11
      7.7.  Employment Agreement                                              11
      7.8.  Expenses                                                          11
      7.9.  Pandey Debt                                                       11

VIII  Indemnification                                                         11
      8.1.  General                                                           11
      8.2.  Indemnity Procedures                                              11
      8.3.  Exclusivity                                                       12
      8.4.  Survival                                                          12

IX    Termination                                                             12
      9.1.  Termination                                                       12
      9.2.  Effect of Termination                                             13

X     Miscellaneous                                                           13
      10.1. Further Actions                                                   13
      10.2. Availability of Equitable Remedies                                13
      10.3. Modification                                                      13
      10.4. Notices                                                           14
      10.5. Waiver                                                            14
      10.6. Binding Effect                                                    14
      10.7. No Third Party Beneficiaries                                      15
      10.8. Separability                                                      15
      10.9. Headings                                                          15
      10.10.Counterparts; Governing Law                                       15


                                       ii

<PAGE>




LIST OF EXHIBITS

Exhibit 1.1       -     Stockholders Agreement
Exhibit 2.3A      -     Capitalization
Exhibit 2.3B      -     Commitments
Exhibit 2.3C      -     Warrant Adjustments
Exhibit 2.5       -     Certificate of Designation
Exhibit 2.6       -     Consents
Exhibit 4.3       -     Disclosure Documents
Exhibit 5.2       -     Opinion of Duane, Morris & Heckscher
Exhibit 5.8       -     Consulting Agreement
Exhibit 6.2       -     Opinion of Herzfeld & Rubin

                                       iii

<PAGE>



                            STOCK PURCHASE AGREEMENT

      Agreement,  dated November 18, 1996, among Xechem  International,  Inc., a
Delaware corporation (the "Company"); David Blech (the "Purchaser");  and Ramesh
C. Pandey ("Pandey").

      The Purchaser and Pandey desire to acquire  certain  shares of the capital
stock  of the  Company,  in  exchange  for  cash  and  debt  of the  Company  as
hereinafter provided, and the Company desires to effect such exchange.

I.    The Exchanges

      1.1.  Terms of the Exchange.  On the basis of the representations, 
warranties, covenants,
and agreements contained in this Agreement and subject to the terms and
 conditions of this
Agreement:

            (a)   at the Initial Closing (as defined below):

                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered  in the  name of the  Purchaser  for  5,000  shares  (the
            "Initial  Shares")  of the  Class  C  Series  2  Convertible  Voting
            Preferred Stock (the "Series 2 Stock") of the Company;

                  (ii) in  consideration  for the Initial Shares,  the Purchaser
            shall deliver to the Company (A) the promissory  note, dated October
            17,  1996,  from the  Company to The Edward A. Blech  Trust,  in the
            principal  amount of $100,000,  and any subsequent  promissory notes
            issued by the  Company to such Trust or the  Purchaser,  each marked
            paid in full,  and (B) the  excess,  if any,  of  $500,000  over the
            aggregate  principal  amount of such promissory  notes and any other
            advances  made by such Trust or the  Purchaser,  by wire transfer of
            immediately  available  funds  (the  Purchaser  hereby  agreeing  to
            provide  evidence,  reasonably  acceptable  to the  Company,  at the
            Initial  Closing that  repayment  to the Trust of such  advances has
            been made); and

                  (iii) the parties  shall enter into a  Stockholders  Agreement
            (the  "Stockholders  Agreement") in the form attached as Exhibit 1.1
            hereto;

      (b)   at each of the Second Closing and the Third Closing
 (each as defined below):

                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered  in the  name of the  Purchaser  for  5,000  shares  (the
            "Second  Shares" or "Third  Shares,"  respectively)  of the Series 2
            Stock; and

                  (ii) in  consideration  for the Second Shares or Third Shares,
            as the case may be,  the  Purchaser  shall  deliver  to the  Company
            $500,000 by wire transfer of immediately available funds;

      (c)   at the Fourth Closing (as defined below),

                                        1

<PAGE>



                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered  in the  name of the  Purchaser  for  7,500  shares  (the
            "Fourth Shares") of the Series 2 Stock;

                  (ii) in  consideration  for the Third  Shares,  the  Purchaser
            shall   deliver  to  the  Company   $750,000  by  wire  transfer  of
            immediately available funds;

                  (iii)  the  Company   shall  issue  to  Pandey  a  certificate
            registered  in his name for 13,180  shares (the "Pandey  Shares") of
            the Class C Series 3 Convertible Voting Preferred Stock (the "Series
            3 Stock") of the Company; and

                  (iv) in  consideration  for the Pandey  Shares,  Pandey  shall
            deliver to the Company (A) all promissory notes or other instruments
            evidencing the indebtedness owed as of the date of this Agreement by
            the  Company  or any of its  subsidiaries  to  Pandey  (the  "Pandey
            Debt"),  marked paid in full, and (B) the stock  certificate(s) held
            by Pandey representing the Class B 8% Preferred Stock of the Company
            (the "Class B Preferred Stock"), together with a stock power related
            thereto;

      (d)   at the Fifth Closing (as defined below):

                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered  in the name of the  Purchaser  for  17,500  shares  (the
            "Fifth Shares") of the Series 2 Stock; and

                  (ii) in  consideration  for the Fifth  Shares,  the  Purchaser
            shall  deliver  to  the  Company  $1,750,000  by  wire  transfer  of
            immediately available funds; and

      (e)   at the Sixth Closing (as defined below),

                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered  in the name of the  Purchaser  for  10,000  shares  (the
            "Sixth Shares") of the Series 2 Stock;

                  (ii) in  consideration  for the Sixth  Shares,  the  Purchaser
            shall  deliver  to  the  Company  $1,000,000  by  wire  transfer  of
            immediately available funds;

      (f)   at the Final Closing (as defined below):

                  (i) the  Company  shall issue to the  Purchaser a  certificate
            registered in the name of the Purchaser for 5,000 shares (the "Final
            Shares" and,  together with the Initial  Shares,  the Second Shares,
            the Third Shares, the Fourth Shares, the Fifth Shares, and the Sixth
            Shares, the "Purchaser Shares") of the Series 2 Stock;

                  (ii) in  consideration  for the Final  Shares,  the  Purchaser
            shall   deliver  to  the  Company   $500,000  by  wire  transfer  of
            immediately available funds.


                                        2

<PAGE>



      (g)  Notwithstanding  the  foregoing,  if,  prior to any Closing  Date (as
hereinafter  defined),  the  Conversion  Date (as defined in the  Certificate of
Designation (as hereinafter defined)) has occurred, the Purchaser and Pandey, to
the extent applicable,  shall receive,  at the Closing (as hereinafter  defined)
held on such Closing  Date,  in lieu of the shares of Series 2 Stock or Series 3
Stock, respectively, issuable as provided above, the shares of Common Stock into
which  such  shares  of  Series  2 Stock  or  Series  3 Stock  would  have  been
convertible  on such Closing Date.  In such case,  the shares of Common Stock so
delivered  shall be deemed the Purchaser  Shares or Pandey  Shares  delivered at
such Closing.

      (h) At the option of the  Purchaser,  the  Purchaser  may, at any Closing,
purchase  some or all of the  Purchaser  Shares to be  purchased at a subsequent
Closing. The Purchaser shall give the Company five business days prior notice of
intent to exercise the option set forth in this Section 1.1(h).

      1.2. The ClosingsThe  closing of the transactions  contemplated by Section
1.1(a) (the  "Initial  Closing")  shall take place on or as soon as  practicable
after  the date  hereof  (the  "Initial  Closing  Date").  The  closings  of the
transactions  contemplated  by Sections  1.1(b),  (c),  (d),  (e),  and (f) (the
"Second  Closing,"  "Third Closing,"  "Fourth  Closing," "Fifth Closing," "Sixth
Closing," and "Final Closing,"  consecutively,  and collectively,  including the
Initial  Closing,  the  "Closings")  shall take place on such dates (the "Second
Closing  Date," "Third  Closing  Date,"  "Fourth  Closing  Date," "Fifth Closing
Date,"  "Sixth  Closing  Date," and "Final  Closing  Date,"  consecutively,  and
collectively,  including the Initial  Closing Date,  the "Closing  Dates") shall
take place on or before December 2, 1996,  December 16, 1996,  January 15, 1997,
February  17,  1997,  June 2, 1997,  and July 15,  1997,  consecutively,  as the
Purchaser  shall,  on five  business  days  notice,  inform the Company that the
Purchaser is prepared to proceed with the respective Closing. Each Closing shall
take place at the offices of Duane,  Morris &  Heckscher,  122 East 42nd Street,
New York, New York.


II    Representations and Warranties of the Company and Pandey

      The Company and Pandey,  jointly and  severally,  represent and warrant to
the Purchaser as follows:

      2.1.  Organization  and  Qualification.  The Company is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Delaware, with all requisite power and authority to own, lease, license, and use
its  properties  and  assets  and to  carry on the  business  in which it is now
engaged and the business in which it contemplates engaging.

      2.2. SEC Reports.  The Company has  delivered  to the  Purchaser  true and
correct  copies of its Annual  Report on Form 10-KSB,  as amended,  for the year
ended December 31, 1995 (the "10- K"),  Quarterly Reports on Form 10-QSB for the
periods ended March 31 and June 30, 1996, all Current  Reports on Form 8-K filed
with the Securities and Exchange  Commission (the "SEC") since the filing of the
10-K,  and its  Proxy  Statement  dated  May 24,  1996  (collectively,  the "SEC
Reports").  None of the SEC Reports when filed with the SEC  contained an untrue
statement of a material fact

                                        3

<PAGE>



or omitted to state a material fact  required to be stated  therein or necessary
to make the statements  made therein not  misleading.  From the date of the last
SEC Report to each Closing Date,  no event has occurred  which caused a material
adverse  change in the business of the Company,  except as disclosed (a) in this
Agreement or one of the Exhibits hereto, (b) in a report or statement filed with
the SEC on or before such  Closing  Date,  a copy of which is  delivered  to the
Purchaser in  accordance  with  Section 7.4, or (c) to the  Purchaser in writing
prior to such Closing Date.

      2.3.  Capitalization.  Set forth on Exhibit 2.3A is the  capitalization of
the  Company  (a) as of August  31,  1996 and (b) pro  forma,  giving  effect to
certain transactions described on Exhibit 2.3A which occurred subsequent to such
date and prior to the date hereof and to the  transactions  contemplated by this
Agreement  as if all such  transactions  (including  the  issuance of all of the
Purchaser  Shares and Pandey Shares) had occurred on such date. Since August 31,
1996,  the Company has not issued any shares of its capital  stock except (c) as
indicated  on Exhibit  2.3A or Exhibit  2.3B,  (d)  issuances  on  exercises  of
previously  outstanding  stock options,  (e) pursuant to this Agreement,  or (f)
issuance  approved  in  writing by the  Purchaser  or  approved  by the Board of
Directors  of the  Company at a time when a  majority  of the  directors  of the
Company  were  nominees  of the  Purchaser.  Other  than  this  Agreement  or as
described on Exhibit 2.3B,  there is (g) no commitment,  plan, or arrangement to
issue, or outstanding  option,  warrant, or other right calling for the issuance
of, any share of capital  stock of the  Company,  or to issue or calling for the
issuance of any security or other instrument  convertible into, exercisable for,
or  exchangeable  for  capital  stock  of the  Company,  and (h) no  outstanding
security or other instrument  convertible into or exchangeable for capital stock
of the Company.  Set forth as Exhibit 2.3C is a description  of the  adjustments
made in the exercise price of certain outstanding  warrants (the "Warrants") and
estimated  adjustments  which will  result  from the  transactions  contemplated
hereby.  It is understood  that such estimated  adjustments are based on various
assumptions, as indicated on Exhibit 2.3C (including,  without limitation, dates
for and numbers of shares to be issued at the Closings  which are not  identical
to the dates and  numbers  of shares  set  forth in  Section  1.1),  and that no
representation is made as to whether such assumptions are reasonable, are likely
to be or will be achieved, or as to the adjustments to such exercise price which
would result from facts different than those set forth in such assumptions.

      2.4. Litigation and Claims. Except as disclosed in the SEC Reports,  there
is no litigation,  arbitration,  claim, governmental or other proceeding (formal
or  informal),  or  investigation  pending or  threatened,  with  respect to the
Company,  except as would not be  reasonably  likely to have a material  adverse
effect on the Company and its  subsidiaries  (each, a  "Subsidiary")  taken as a
whole.

      2.5.  Authority to Sell. The Company has all requisite power and authority
to execute,  deliver, and perform this Agreement and the Stockholders Agreement.
All  necessary  corporate  proceedings  of the  Company  have been duly taken to
authorize the  execution,  delivery,  and  performance of this Agreement and the
Stockholders Agreement by the Company,  except for (a) the filing of the Amended
and Restated  Certificate of Designation setting forth the terms of the Series 2
Stock and the Series 3 Stock (the "Certificate of  Designation"),  which will be
filed,  in the form  attached  hereto as  Exhibit  2.5,  on or before  the First
Closing Date and (b) approval of the  stockholders of the Company  ("Stockholder
Approval") of an amendment to the Certificate of

                                        4

<PAGE>



Incorporation  (the  "Amendment") to increase the number of authorized shares of
the Company's  Common Stock (the "Common Stock") as contemplated by Section 7.5.
Each of this Agreement and the  Stockholders  Agreement has been duly authorized
by the  Company,  this  Agreement  has  been,  and at the  Initial  Closing  the
Stockholders  Agreement will be, duly executed and delivered by the Company, and
each of  this  Agreement  and the  Stockholders  Agreement  constitutes  or will
constitute  the legal,  valid,  and binding  obligation of the Company and is or
will be enforceable as to the Company in accordance with its terms.

      2.6.  No  Conflicts.  Except  as set  forth in  Sections  7.5 and 7.6,  no
consent,  authorization,  approval, order, license, certificate, or permit of or
from,  or  declaration  or filing with,  any  federal,  state,  local,  or other
governmental authority or any court or other tribunal is required by the Company
for  the  execution,   delivery,  or  performance  of  this  Agreement  and  the
Stockholders  Agreement by the Company. No consent of any party to any contract,
agreement,  instrument,  lease, or license (collectively,  "Contracts") to which
the  Company  or  any  Subsidiary  is a  party,  or to  which  it or  any of its
businesses,  properties,  or assets are subject,  is required for the execution,
delivery, or performance of this Agreement and the Stockholders Agreement by the
Company  (except  consents  referred  to in  Exhibit  2.6);  and the  execution,
delivery,  and performance of this Agreement and the  Stockholders  Agreement by
the Company  will not (if the  consents  referred to in Exhibit 2.6 are obtained
prior to the Initial Closing) violate,  result in a breach of, conflict with, or
(with or without  the giving of notice or the  passage of time or both)  entitle
any party to terminate or call a default under,  entitle any party to rights and
privileges that such party was not receiving or entitled to receive  immediately
before this Agreement was executed  under,  or create any obligation on the part
of the  Company or any  Subsidiary  that it was not paying or  obligated  to pay
immediately  before this  Agreement  was  executed  under,  any term of any such
Contract  or  violate  or result in a breach of any term of the  certificate  of
incorporation  (or other  charter  document)  or by-laws  of the  Company or any
Subsidiary,  or violate,  result in a breach of, or conflict with any law, rule,
regulation,  order, judgment, or decree binding on the Company or any Subsidiary
or to which it or any of its businesses, properties, or assets are subject.

      2.7. Valid Issuance,  Etc. At each Closing, the Purchaser Shares or Pandey
Shares to be issued at such Closing will be validly authorized,  validly issued,
fully paid, and  nonassessable and will not have been issued in violation of any
preemptive right of stockholders,  and the Purchaser or Pandey,  as the case may
be, will receive good title to the shares issued to it or him, free and clear of
all liens, security interests,  pledges,  charges,  encumbrances,  stockholders'
agreements, and voting trusts, other than the Stockholders Agreement. Subject to
receipt of the Stockholder  Approval and filing of the Amendment,  the shares of
Common Stock  issuable on conversion  of the Purchaser  Shares and Pandey Shares
(the  "Conversion  Shares") have been reserved for issuance and, when issued and
delivered  on  conversion  of the  Purchaser  Shares or Pandey  Shares,  will be
validly authorized,  validly issued,  fully paid, and nonassessable and will not
have been issued in violation of any preemptive right of  stockholders,  and the
holders of such converted the Purchaser Shares or Pandey Shares, as the case may
be, will receive good title to the shares issued to it or him, free and clear of
all liens, security interests,  pledges,  charges,  encumbrances,  stockholders'
agreements, and voting trusts, other than the Stockholders Agreement.


                                        5

<PAGE>



      2.8.  Completeness  of Disclosure.  No  representation  or warranty by the
Company in this Agreement  contains or (except for changes beyond the control of
the Company) on any Closing Date will contain an untrue  statement of a material
fact or omits or (except for changes  beyond the control of the  Company) on any
Closing Date will omit to state a material fact required to be stated therein or
necessary to make the statements made therein not misleading.


III   Additional Representations and Warranties of Pandey

      Pandey represents and warrants to the other parties hereto as follows:

      3.1. Authority to Act. This Agreement has been, and at the Initial Closing
the Stockholders  Agreement will be, duly executed and delivered by Pandey,  and
each of  this  Agreement  and the  Stockholders  Agreement  constitutes  or will
constitute the legal,  valid, and binding obligation of Pandey and is or will be
enforceable as to Pandey in accordance with its terms.

      3.2. No Conflicts. No consent,  authorization,  approval,  order, license,
certificate,  or permit of or from, or  declaration or filing with, any federal,
state, local, or other governmental  authority or any court or other tribunal is
required by Pandey for the execution, delivery, or performance of this Agreement
and the  Stockholders  Agreement  by  Pandey.  No  consent  of any  party to any
Contract to which  Pandey is a party,  or to which he or any of his  businesses,
properties,  or assets are subject, is required for the execution,  delivery, or
performance of this Agreement and the  Stockholders  Agreement by Pandey (except
consents  referred  to  in  Exhibit  2.6);  and  the  execution,  delivery,  and
performance of this Agreement and the Stockholders  Agreement by Pandey will not
(if the consents  referred to in Exhibit 2.6 are  obtained  prior to the Initial
Closing) violate,  result in a breach of, conflict with, or (with or without the
giving of notice or the passage of time or both)  entitle any party to terminate
or call a default under,  entitle any party to rights and  privileges  that such
party was not receiving or entitled to receive immediately before this Agreement
was executed  under,  or create any obligation on the part of Pandey that he was
not paying or obligated to pay  immediately  before this  Agreement was executed
under,  any term of any such  Contract,  or  violate,  result in a breach of, or
conflict with any law, rule,  regulation,  order, judgment, or decree binding on
Pandey  or to which  he or any of his  businesses,  properties,  or  assets  are
subject.

      3.3.  Non-Distributive  Intent.  Pandey is an  "accredited  investor,"  as
defined in Regulation D promulgated under the Securities Act of 1933, as amended
(the "Securities Act"). Pandey is acquiring the Pandey Shares, and on conversion
of any Pandey Shares will acquire the underlying  Conversion Shares, for his own
account (and not for the account of others) for  investment  and not with a view
to the distribution  thereof.  Pandey will not sell or otherwise  dispose of the
Pandey Shares or Conversion Shares (whether  pursuant to a liquidating  dividend
or otherwise)  without  registration  under the  Securities  Act or an exemption
therefrom,  and the certificate or certificates  representing  the Pandey Shares
and the Conversion Shares may contain a legend to the foregoing  effect.  Pandey
has been given access to the kind of financial and other  information  about the
Company  as would be  contained  in a  registration  statement  filed  under the
Securities Act. Pandey  understands that he may not sell or otherwise dispose of
the Pandey Shares or Conversion Shares in

                                        6

<PAGE>



the absence of either a  registration  statement  under the Securities Act or an
exemption from the registration provisions of the Securities Act.

      3.4. Pandey Debt and Preferred  Stock.  Pandey owns all of the Pandey Debt
and all of the shares of Class B Preferred Stock, in each case free and clear of
all liens, security interests,  pledges,  charges,  encumbrances,  stockholders'
agreements,  and voting  trusts,  other than this  Agreement  and the  agreement
referred to on Exhibit 2.6.  Pandey owns no other  shares of preferred  stock of
the Company,  except 2,500 shares of the Class A Voting  Preferred  Stock of the
Company.

      3.5.  Completeness of Disclosure.  No representation or warranty by Pandey
in this Agreement  contains or (except for changes beyond the control of Pandey)
on any Closing Date will contain an untrue statement of a material fact or omits
or (except  for changes  beyond the control of Pandey) on any Closing  Date will
omit to state a material fact required to be stated therein or necessary to make
the statements made therein not misleading.


IV    Representations and Warranties of the Purchaser

      The  Purchaser  represents  and  warrants to the other  parties  hereto as
follows:

      4.1. Authority to Buy. This Agreement has been, and at the Initial Closing
the  Stockholders  Agreement  will  be,  duly  executed  and  delivered  by  the
Purchaser,  and each of this Agreement and the Stockholders Agreement is or will
be the legal,  valid, and binding  obligation of the Purchaser and is or will be
enforceable as to the Purchaser in accordance with its terms.

      4.2. No Conflicts. No consent,  authorization,  approval,  order, license,
certificate,  or permit of or from, or  declaration or filing with, any federal,
state, local, or other governmental  authority or any court or other tribunal is
required by the Purchaser for the  execution,  delivery,  or performance of this
Agreement and the  Stockholders  Agreement by the  Purchaser.  No consent of any
party to any Contract to which the  Purchaser is a party,  or to which it or any
of its  businesses,  properties,  or assets are  subject,  is  required  for the
execution,  delivery,  or  performance  of this  Agreement and the  Stockholders
Agreement by the Purchaser; and the execution, delivery, and performance of this
Agreement  and the  Stockholders  Agreement by the  Purchaser  will not violate,
result in a breach of,  conflict  with, or (with or without the giving of notice
or the passage of time or both) entitle any party to terminate or call a default
under,  entitle  any  party to rights  and  privileges  that such  party was not
receiving or entitled to receive  immediately before this Agreement was executed
under,  or create any  obligation on the part of the  Purchaser  that it was not
paying or obligated to pay immediately before this Agreement was executed under,
any term of any such  Contract,  or violate,  result in a breach of, or conflict
with any law,  rule,  regulation,  order,  judgment,  or decree  binding  on the
Purchaser  or to which it or any of its  businesses,  properties,  or assets are
subject.


                                        7

<PAGE>



      4.3. Non-Distributive Intent. The Purchaser is an accredited investor. The
Purchaser  is acquiring  the  Purchaser  Shares,  and on  conversion  of any the
Purchaser  Shares will acquire the  underlying  Conversion  Shares,  for its own
account (and not for the account of others) for  investment  and not with a view
to the distribution thereof. The Purchaser will not sell or otherwise dispose of
the Purchaser  Shares or Conversion  Shares  (whether  pursuant to a liquidating
distribution or otherwise)  without  registration under the Securities Act or an
exemption  therefrom,  and the  certificate  or  certificates  representing  the
Purchaser Shares and the Conversion Shares may contain a legend to the foregoing
effect.  The  Purchaser has been given access to the kind of financial and other
information about the Company as would be contained in a registration  statement
filed under the Securities Act.  Without  limiting the foregoing,  the Purchaser
acknowledges  receipt of the SEC  reports and the other  documents  listed in or
attached  to Exhibit  4.3.  The  Purchaser  understands  that it may not sell or
otherwise dispose of the Purchaser Shares or Conversion Shares in the absence of
either a  registration  statement  under the Securities Act or an exemption from
the registration provisions of the Securities Act.

      4.4.  Completeness  of Disclosure.  No  representation  or warranty by the
Purchaser in this  Agreement  contains or (except for changes beyond the control
of the  Purchaser)  on any Closing  Date will  contain an untrue  statement of a
material  fact or omits  or  (except  for  changes  beyond  the  control  of the
Purchaser) on any Closing Date will omit to state a material fact required to be
stated therein or necessary to make the statements made therein not misleading.


V     Conditions to Obligations of the Purchaser

      The  obligations  of the Purchaser at any Closing under this Agreement are
subject, at the option of the Purchaser, to the following conditions:

      5.1.  Accuracy of  Representations  and Compliance  with  Conditions.  All
representations  and  warranties  of the  Company  or Pandey  contained  in this
Agreement shall be accurate when made and, in addition,  shall be accurate as of
such Closing as though such  representations  and  warranties  were then made in
exactly the same  language by the Company or Pandey  (except for changes  beyond
its or his  control);  as of the  Closing  the  Company  and  Pandey  shall have
performed  and complied  with all  covenants  and  agreements  and satisfied all
conditions  required  to be  performed  and  complied  with by any of them at or
before  such time by this  Agreement;  and the  Purchaser  shall  have  received
certificates  executed  by  the  President  or  Vice  President  -  Finance  and
Operations of the Company and by Pandey,  dated the respective  Closing Date, to
that effect.

      5.2. Opinion of Counsel. The Purchaser shall have received on such Closing
Date the opinion of Duane, Morris & Heckscher,  counsel to the Company, dated as
of such date, in the form attached as Exhibit 5.2.

      5.3.  Legal Action.  There shall not have been instituted or threatened
 any legal proceeding
relating to, or seeking to prohibit or otherwise challenge the consummation of,
 the transactions
contemplated by this Agreement, or to obtain substantial damages with respect 
thereto.

                                        8

<PAGE>



      5.4. No Governmental  Action.  There shall not have been any action taken,
or any law, rule, regulation, order, or decree proposed,  promulgated,  enacted,
entered, enforced, or deemed applicable to the transactions contemplated by this
Agreement by any federal,  state,  local, or other governmental  authority or by
any court or other  tribunal,  including the entry of a preliminary or permanent
injunction,  which makes any of the transactions  contemplated by this Agreement
illegal  or  prohibits,   restricts,  or  delays  consummation  of  any  of  the
transactions contemplated by this Agreement.

      5.5.  Contractual Consents Needed.  The Company shall have obtained at or
 prior to such
Closing the consents listed in Exhibit 2.6.

      5.6.  Stockholders Agreement.  The Stockholders Agreement shall have been
duly
authorized, executed, and delivered by Pandey and the Company at or prior to
 such Closing and at
such Closing shall be in full force.

      5.7. Pandey Closing.  The exchange by Pandey of the Pandey Debt and shares
of Class B Preferred  Stock for the Pandey  Shares shall have been  consummated;
provided,  that this  Section 5.7 shall be a condition  only with respect to the
Fourth Closing and each subsequent Closing.

      5.8.  Consulting Agreement.  At the Initial Closing, the Company shall
 have executed and
delivered a Consulting Agreement with Mark Germain substantially in the form 
attached hereto as
Exhibit 5.8.

      5.9.  Bankruptcy.  At such Closing Date, there shall not have been entered
any  decree or order by a court  having  jurisdiction  adjudging  the  Company a
bankrupt  or  insolvent,   or  approving  a  petition  seeking   reorganization,
arrangement,  adjustment,  or composition of or in respect of the Company, under
any  federal  or  state  bankruptcy  law,  and the  Company  shall  not have (a)
commenced  a  voluntary  case under any  federal or state  bankruptcy  law,  (b)
consented to the institution of bankruptcy or insolvency proceedings against it,
or the filing by it of a petition or answer or consent seeking reorganization or
relief under federal or state  bankruptcy law or the  appointment of a receiver,
liquidator,  assignee, trustee, sequestrator, or similar official of the Company
or of any  substantial  part of its  property,  (c) made an  assignment  for the
benefit of  creditors,  (d)  admitted in writing its  inability to pay its debts
generally as they become due, or (e) taken any action in furtherance of any such
action.

      5.10.  Chief  Executive.  At such Closing Date,  Pandey shall be the Chief
Executive  Officer of the  Company;  provided,  that this Section 5.10 shall not
apply if  Pandey  shall  have  been  removed  (other  than for  cause)  as Chief
Executive Officer by action of the Purchaser or any of its nominees as directors
of the Company.


                                        9

<PAGE>



VI    Conditions to the Obligations of the Company and Pandey

      The  obligations  of the  Company  and  Pandey  under this  Agreement  are
subject, at the option of the Company and Pandey, to the following conditions:

      6.1.  Accuracy of  Representations  and Compliance  with  Conditions.  All
representations  and  warranties  of the Purchaser  contained in this  Agreement
shall be  accurate  when made and,  in  addition,  shall be  accurate as of such
Closing as though such  representations and warranties were then made in exactly
the same language by the Purchaser  (except for changes beyond its control);  as
of the  Closing  the  Purchaser  shall  have  performed  and  complied  with all
covenants and agreements  and satisfied all conditions  required to be performed
and  complied  with by it at or  before  such  time by this  Agreement;  and the
Company and Pandey shall have received a  certificate  executed on behalf of the
Purchaser, dated the respective Closing Date, to that effect.

      6.2.  Opinion of Counsel.  The Company shall have received on the First
 Closing Date the
opinion of Herzfeld & Rubin, counsel to the Purchaser, dated as of such date, 
in the form attached
as Exhibit 6.2.

      6.3.  Legal Action.  There shall not have been instituted or threatened
any legal proceeding
relating to, or seeking to prohibit or otherwise challenge the consummation of, 
the transactions
contemplated by this Agreement, or to obtain substantial damages with respect 
thereto.

      6.4. No Governmental  Action.  There shall not have been any action taken,
or any law, rule, regulation, order, or decree proposed,  promulgated,  enacted,
entered, enforced, or deemed applicable to the transactions contemplated by this
Agreement by any federal,  state,  local, or other governmental  authority or by
any court or other  tribunal,  including the entry of a preliminary or permanent
injunction,  which makes any of the transactions  contemplated by this Agreement
illegal  or  prohibits,   restricts,  or  delays  consummation  of  any  of  the
transactions contemplated by this Agreement.

      6.5.  Contractual Consents Needed.  The Company shall have obtained at or 
prior to such
Closing the consents listed in Exhibit 2.6.

      6.6.  Stockholders Agreement.  The Stockholders Agreement shall have been
duly
authorized, executed, and delivered by the Purchaser at or prior to such Closing
 and at such Closing
shall be in full force.

      6.7.  Purchaser Closing.  The purchase by the Purchaser of the Purchaser 
Shares to be
purchased on or prior to such Closing Date shall have been consummated.

      6.8.  Fairness Opinion.  The Company shall have received a written 
fairness opinion, in
form and substance satisfactory to the Company, from The Griffin Group, Inc.
 with respect to the
transactions contemplated by this Agreement.


                                       10

<PAGE>



VII   Covenants and Agreements

      The parties covenant and agree as follows:

      7.1.  Advice of Changes Until the Final Closing or the termination of this
Agreement,  each party will advise the others of any fact or occurrence of which
such party obtains knowledge and which (if existing and known at the date of the
execution  of this  Agreement)  would  have  been  required  to be set  forth or
disclosed  in or  pursuant to this  Agreement  or an Exhibit  hereto,  which (if
existing  and  known at any  time  prior to or at the  Closing)  would  make the
performance by any party of a covenant contained in this Agreement impossible or
make such performance materially more difficult than in the absence of such fact
or  occurrence,  or which (if  existing  and  known at the time of a  subsequent
Closing) would cause a condition to any party's obligations under this Agreement
not to be fully satisfied.

      7.2.  Confidentiality.  Each  party  shall  insure  that all  confidential
information  which  such  party or any of its  officers,  directors,  employees,
counsel,  agents,  investment  bankers,  or  accountants  may now possess or may
hereafter  create or obtain  relating  to the  financial  condition,  results of
operations,  business,  properties,  assets, liabilities, or future prospects of
any other party shall not be published,  disclosed, or made accessible by any of
them to any other  person or entity at any time or used by any of them except in
the business and for the benefit of the party to whom such information  belongs,
in each case without the prior written consent of such party; provided, however,
that the  restrictions  of this sentence shall not apply (a) as may otherwise be
required by law, (b) as may be necessary or appropriate  in connection  with the
enforcement of this Agreement,  or (c) to the extent such information shall have
otherwise become publicly available.

      7.3.  Public  Statements.  Before any party shall release any  information
concerning  this Agreement or the  transactions  contemplated  by this Agreement
which is  intended  for or would be likely  to  result  in public  dissemination
thereof, it shall cooperate with the other parties, shall furnish drafts of such
disclosure  to the other  parties for  comments,  and shall not release any such
information without the written consent of such other parties,  such consent not
to be unreasonably withheld; provided, that (a) any party may, without complying
with this Section 7.3, make such disclosure if such disclosure is  substantially
similar  to public  disclosure  previously  made by any  party  and (b)  nothing
contained  herein shall prevent any party from releasing any  information to any
governmental  authority  if  required  to do so  by  law  or  the  Company  from
describing this Agreement and the transactions contemplated herein to the extent
the Company reasonably  believes it is required in its reports and filings under
the  Securities  Act and the  Securities  Exchange Act of 1934,  as amended (the
"Exchange Act").

      7.4.  Furnish  Future   Information.   Until  the  Final  Closing  or  the
termination of this  Agreement,  and thereafter so long as the Purchaser and its
permitted assignees hereunder shall hold at least 10% of the Purchaser Shares or
underlying Conversion Shares, the Company will furnish to the Purchaser and such
assignees,  promptly  upon their  becoming  available,  copies of all  financial
statements,  reports,  notices,  and proxy statements sent by the Company to its
stockholders, all regular

                                       11

<PAGE>



and periodic  reports filed by the Company with any securities  exchange or with
the SEC, and all press releases.

      7.5.  Amendment.  The Company will,  and Pandey will cause the Company to,
use  their  best  efforts  to,  as  soon as  practicable,  (a)  file a proxy  or
information  statement  relating  to,  and call and hold a meeting  of or obtain
written consent of the  stockholders  of the Company to approve,  the Amendment,
(b) obtain the  Stockholder  Approval,  and (c) file the Amendment.  The Company
shall give the Purchaser  prompt notice of the filing of the Amendment.  Each of
Pandey  and the  Purchaser  agrees to vote or  execute a  written  consent  with
respect  to all  shares of capital  stock of the  Company  owned by him or it in
favor of the Amendment.

      7.6.  Nasdaq.  Promptly after the date hereof, the Company shall give
 notice to the Nasdaq
Stock Market, Inc. of  the issuance or potential issuance of the Purchaser 
Shares and Pandey Shares
and the potential issuance of the Conversion Shares.

      7.7. Employment  Agreement.  For purposes of Section 5.5 of the Employment
Agreement,  dated February 1994,  between Pandey and the Company,  Pandey hereby
agrees that he has approved the transactions  contemplated by this Agreement and
that, accordingly,  such transactions do not and will not result in a "Change in
Control" as defined in such Employment Agreement.

      7.8.  Expenses.  The Company shall pay the reasonable  attorneys' fees and
expenses of the Purchaser's counsel, not to exceed $15,000 in the aggregate. The
Company  shall pay such  expenses  at the  Initial  Closing or  thereafter  upon
presentation of invoices therefor. Except for the foregoing, each party shall be
responsible for his or its own expenses in connection with this Agreement.

      7.9.  Pandey Debt.  Effective upon delivery of the Pandey  Shares,  Pandey
hereby releases and discharges all claims and causes of action, whether known or
unknown, which he or his heirs, personal representatives, successors, or assigns
ever had, now have,  or hereafter  may have against the Company on account of or
relating to the Pandey Debt.


VIII  Indemnification

      8.1. General.  Each party (the  "indemnifying  party") shall indemnify and
hold harmless the other  parties and the other  parties'  affiliates,  officers,
directors, trustees, stockholders, employees, agents, and representatives (each,
an  "indemnified  party")  from and  against  any and all  liabilities,  claims,
demands,  actions,  suits,  losses,  damages,  costs,  and expenses  (including,
without  limitation,  reasonable  attorneys'  fees  and  any  and  all  expenses
whatsoever  incurred  in  investigating,  preparing,  or  defending  against any
litigation,  commenced or threatened,  or any claim whatsoever,  and any and all
amounts  paid  in  settlement  of  any  claim  or   litigation)   (collectively,
"Damages"),  based upon or arising out of a breach of any  covenant,  agreement,
representation,  or warranty made by the indemnifying party in this Agreement or
the Stockholders Agreement.


                                       12

<PAGE>



      8.2.   Indemnity   Procedures.    (a)   An   indemnified   party   seeking
indemnification under this Agreement in respect of, arising out of, or involving
a claim or demand  made by any  person or  governmental  authority  against  the
indemnified party (a "Third Party Claim") shall notify the indemnifying party in
writing of the Third Party Claim within 20 days after receipt by the indemnified
party of  written  notice of the Third  Party  Claim;  provided,  however,  that
failure to give such notification shall not affect the indemnification  provided
under this  Agreement,  except to the extent the  indemnifying  party shall have
been prejudiced by such failure. Thereafter, the indemnified party shall deliver
to the  indemnifying  party,  promptly  after the  indemnified  party's  receipt
thereof,  copies of all notices and documents  (including court papers) received
by the indemnified party relating to the Third Party Claim.

      (b) The  indemnifying  party  shall have the  right,  within 30 days after
being so notified,  to assume the defense of such Third Party Claim with counsel
reasonably  satisfactory  to the  indemnified  party. In any such proceeding the
defense of which the indemnifying  party shall have so assumed,  the indemnified
party shall have the right to participate  therein and retain its own counsel at
its own expense  unless (i) the  indemnified  party and the  indemnifying  party
shall  have  mutually  agreed  to  the  retention  of  such  counsel,  (ii)  the
indemnified party shall have reasonably  concluded on the basis of an opinion of
its counsel that there may be one or more legal  defenses  available to it which
are different from or additional to those available to the  indemnifying  party,
or (iii) the named  parties  to any such  proceeding  (including  any  impleaded
parties)  include both the  indemnifying  party and the indemnified  party,  and
representation of both parties by the same counsel would be inappropriate in the
opinion of the indemnified  party's counsel due to actual or potential differing
interests  between  them;  in any such case,  one such  separate  counsel may be
retained  by all  indemnified  parties  as a group at the  indemnifying  party's
expense.  To the extent that the  settlement  of such a Third Party  Claim,  the
defense  of which has been  assumed  by the  indemnifying  party,  involves  the
payment  of  money  only,  the  indemnifying  party  shall  have the  right,  in
consultation  with the  indemnified  party, to settle those aspects dealing only
with the payment of money,  provided that the indemnifying party pays such money
and such  settlement  includes a general  release from the other parties to such
Third Party Claim in favor of the indemnified party. In connection with any such
defense or  settlement,  the  indemnifying  party shall not enter into a consent
decree involving  injunctive or non-monetary  relief or consent to an injunction
without the indemnified party's prior written consent.

      (c) The indemnified party shall cooperate in all reasonable  respects with
the indemnifying party in connection with any Third Party Claims and the defense
or compromise  thereof.  Such cooperation  shall include the retention and (upon
the indemnifying  party's  request) the provision to the  indemnifying  party of
records and  information  reasonably  relevant to the Third Party Claim,  making
employees  available  on a  mutually  convenient  basis  to  provide  additional
information,  and explanation of any material provided under this Agreement.  If
the  indemnifying  party shall have  assumed the defense of a Third Party Claim,
the indemnified  party shall not, without first waiving the indemnity as to such
claim, admit any liability with respect to, or settle, compromise, or discharge,
the Third Party Claim,  without the indemnifying  party's prior written consent,
which consent shall not be  unreasonably  withheld;  provided that admissions of
facts which a party may reasonably be required to make shall not be deemed to be
admissions of liability.


                                       13

<PAGE>



      8.3. Exclusivity.  The indemnification provided by this Article VIII shall
be the sole remedy (other than termination of this Agreement pursuant to Article
IX) for any matters relating to Third Party Claims;  provided, that this Section
8.3 shall not prohibit injunctive relief if available under applicable law.

      8.4. Survival. All representations,  warranties, covenants, and agreements
contained in this  Agreement  shall  survive the  execution and delivery of this
Agreement and the Closings  hereunder  for a period of, and shall  terminate on,
the first  anniversary  of, the Final  Closing,  and no claim with  respect to a
breach thereof shall be made  thereafter;  provided,  that  representations  and
warranties  contained in Sections  2.3,  2.7,  3.3,  3.4, and 4.3 shall  survive
indefinitely.


IX    Termination

      9.1.  Termination.  This Agreement may be terminated at any time prior to
 any Closing:

            (a)   by mutual written consent executed by the Company, Pandey,
and the
      Purchaser;

            (b) by the Company and Pandey, acting jointly, or the Purchaser,  by
      notice  given to the Company and Pandey in writing,  without  liability to
      the terminating party or parties on account of such termination (providing
      the terminating party or parties are not otherwise in default or in breach
      of  this  Agreement),  if (i)  any  of  the  conditions  to  their  or its
      obligations  under this Agreement  shall not have been satisfied or waived
      in  writing by such  parties  or party or (ii) the other  party or parties
      shall  have  failed  to  perform  in any  material  respect  its or  their
      covenants or agreements contained herein required to be performed prior to
      the Closing, or shall have breached any of its or their representations or
      warranties  contained  herein, in each instance in a material respect (and
      provided  that the  terminating  parties or party  shall  afford the other
      party or parties at least 15 business  days notice of and  opportunity  to
      cure such breach),  unless such failure is  attributable  to the breach by
      the  terminating  party or parties of any of its or their  obligations  to
      consummate the transactions  contemplated hereby or of any of its or their
      other obligations hereunder; or

            (c) by any party,  by notice given to the other  parties in writing,
      without liability,  if the transactions  contemplated hereby shall violate
      any  non-appealable  final order,  decree, or judgment of any governmental
      authority  having  competent  jurisdiction or if there shall be a statute,
      rule,  or  regulation  that  makes  such  purchase  illegal  or  otherwise
      prohibited.

      9.2.  Effect  of  Termination.  Upon  any  termination  of this  Agreement
pursuant  to  Section  9.1,  none of the  parties  shall have any  liability  or
obligation to the others arising out of this Agreement  except for any liability
arising  from a party's  breach  of this  Agreement  prior to such  termination;
provided that (a) if this Agreement shall be terminated  after the occurrence of
a  Closing  and  prior to the  occurrence  of one or more  other  Closing,  this
Agreement  shall  remain in  effect  except  with  respect  to the  transactions
contemplated to occur after the date of such termination, (b) the

                                       14

<PAGE>



termination  of this  Agreement by a party or parties as a result of the failure
or  refusal  of  another  party  or  parties  to  close  all or any  part of the
transactions  contemplated by Section 1.1 when and as required by this Agreement
shall not relieve the  defaulting  party or parties from any  liability for such
failure  or refusal  to close  (except  that a  termination  resulting  from the
failure by the Purchaser to consummate the purchase of the Third Shares,  Fourth
Shares,  Fifth Shares, Sixth Shares, or Final Shares shall relieve the Purchaser
from such liability and shall be the sole remedy for such  failure),  and (c) in
any case,  the  provisions  of Sections 7.2, this Section 9.2, and Articles VIII
and X shall survive such termination.


X     Miscellaneous

      10.1. Further Actions.  At any time and from time to time, each party
agrees, at its or his
expense, to take such actions and to execute and deliver such documents as may
 be reasonably
necessary to effectuate the purposes of this Agreement.

      10.2. Availability of Equitable Remedies. Since a breach of the provisions
of this Agreement  could not  adequately be  compensated  by money damages,  any
party shall be entitled,  either before or after the Closing, in addition to any
other right or remedy available to it, to an injunction  restraining such breach
or a threatened breach and to specific performance of any such provision of this
Agreement,  and in either  case no bond or other  security  shall be required in
connection therewith,  and the parties hereby consent to the issuance of such an
injunction and to the ordering of specific performance.

      10.3.  Modification.  This Agreement and the Exhibits hereto set forth the
entire  understanding  of the parties with respect to the subject matter hereof,
supersede all existing agreements among them concerning such subject matter, and
may be modified only by a written instrument duly executed by each party.

      10.4. Notices. Any notice or other communication  required or permitted to
be given  hereunder  shall be in writing and shall be mailed by certified  mail,
return  receipt  requested,  or by Federal  Express,  Express  Mail,  or similar
overnight  delivery or courier service,  or delivered (in person or by telecopy,
telex, or similar telecommunications  equipment) against receipt to the party to
whom it is to be given,

            (a)   if to the Company or Pandey, at

                        Xechem International, Inc.
                        100 Jersey Avenue
                        Building B, Suite 310
                        New Brunswick, NJ 08901
                        Attn:  Dr. Ramesh C. Pandey, President
                        Facsimile No. (908) 247-4090


                                       15

<PAGE>



            (b)   if to the Purchaser,

                        225 Lafayette Street
                        Suite 1214
                        New York, NY 10012
                        Facsimile No.  (212) 431-5952

or to such  other  address  as the party  shall  have  furnished  in  writing in
accordance  with the  provisions  of this  Section  10.4.  Any  notice  or other
communication  given by  certified  mail  shall be  deemed  given at the time of
certification thereof, except for a notice changing a party's address which will
be deemed given at the time of receipt thereof.  Any notice given by other means
permitted  by this  Section  10.4  shall be deemed  given at the time of receipt
thereof.

      10.5.  Waiver.  Any  waiver  by any  party of a breach of any term of this
Agreement  shall  not  operate  as or be  construed  to be a waiver of any other
breach of that term or of any  breach of any other term of this  Agreement.  The
failure of a party to insist upon strict adherence to any term of this Agreement
on one or more  occasions  will not be considered a waiver or deprive that party
of the right  thereafter  to insist  upon strict  adherence  to that term or any
other term of this Agreement. Any waiver must be in writing.

      10.6.  Binding Effect. No party may sell, assign,  transfer,  or otherwise
convey any of its or his rights or delegate  any of its or his duties under this
Agreement,  except as hereinafter provided,  and this Agreement shall be binding
upon and  inure  to the  benefit  of the  parties  hereto  and the  respec  tive
permitted  successors,  assigns,  and personal  representatives  of the parties.
Notwithstanding the foregoing,  the Purchaser may assign its rights and delegate
its obligations to purchase any of the Shares to any person or persons, provided
that (a) such  person or  persons  agree to be bound by this  Agreement  and the
Stockholders  Agreement  as if  such  person  or  persons  were  the  Purchaser,
including,  without limitation, that each such person shall make representations
with respect to himself or itself similar to those made by the Purchaser herein,
(b) each such person shall be reasonably  acceptable to the Company (the Company
hereby  agreeing that The Edward A. Blech Trust and Mark Germain are  reasonably
acceptable  assignees),  and (c) no such assignment or delegation  shall relieve
the  Purchaser of its  obligations  to purchase any such shares if such assignee
does not. Any attempted sale, assignment, transfer, conveyance, or delegation in
violation of this Section 10.6 shall be void.  The  provisions of this Agreement
shall  inure to the benefit of each  indemnified  party and its  successors  and
assigns  (if  not a  natural  person)  and  his  assigns,  heirs,  and  personal
representatives (if a natural person).

      10.7. No Third Party Beneficiaries.  This Agreement does not create, and 
shall not be
construed as creating, any rights enforceable by any person not a party to this 
Agreement (except as
provided in Section 10.6).

      10.8. Separability.  If any provision of this Agreement is invalid,
 illegal, or unenforceable,
the balance of this Agreement shall remain in effect, and if any provision is 
inapplicable to any person
or circumstance, it shall nevertheless remain applicable to all other persons 
and circumstances.

                                       16

<PAGE>



      10.9. Headings.  The headings in this Agreement are solely for convenience
of reference and
shall be given no effect in the construction or interpretation of this Agreement

      10.10.Counterparts;  Governing  Law. This Agreement may be executed in any
number of  counterparts,  each of which shall be deemed an original,  but all of
which  together  shall  constitute  one and the  same  instrument.  It  shall be
governed by and construed in accordance  with the laws of the State of New York,
without giving effect to conflict of laws.

      IN WITNESS  WHEREOF,  the parties have duly executed this  Agreement as of
the date first written above.

                           XECHEM INTERNATIONAL, INC.


                             By /s/ Ramesh C. Pandey
                                             Ramesh C. Pandey, President




                                                    /s/ Ramesh C.  Pandey
                                Ramesh C. Pandey


                                                    /s/ David Blech
                                   David Blech

                                       17

<PAGE>





                                     AMENDED

              CERTIFICATE OF DESIGNATIONS, PREFERENCES, AND RIGHTS

                                       OF

               CLASS C SERIES 2 VOTING CONVERTIBLE PREFERRED STOCK

                                       AND

               CLASS C SERIES 3 VOTING CONVERTIBLE PREFERRED STOCK

                                       OF

                           XECHEM INTERNATIONAL, INC.


      Xechem  International,  Inc., a Delaware  corporation (the "Corporation"),
hereby  certifies that (i) no shares of its Class C Series 2 Voting  Convertible
Preferred Stock or Class C Series 3 Voting Convertible Preferred Stock have been
issued and (ii)  pursuant to the  authority  contained in Article  FOURTH of its
Certificate of  Incorporation,  and in accordance with the provisions of Section
151 of the General  Corporation Law of the State of Delaware,  the Corporation's
Board of  Directors  has duly  adopted the  following  resolution  amending  and
restating  the  voting   powers,   designations,   preferences,   and  relative,
participating,  optional,  and other  special  rights of the shares of each such
series, and the qualifications, limitations, or restrictions thereof:

      RESOLVED, that two series of the class of the authorized Class C Preferred
Stock of the  Corporation  be  created  hereby,  and that the  designations  and
amounts thereof and the voting powers, preferences, and relative, participating,
optional,  and other special  rights of the shares of each such series,  and the
qualifications, limitations, or restrictions thereof, are as follows:

      1. Designations and Numbers of Shares. Fifty-five thousand (55,000) shares
of the Class C Preferred Stock of the  Corporation  are hereby  constituted as a
series of Class C Preferred  Stock,  $.00001 par value per share, and designated
as "Class C Series 2 Voting Convertible Preferred Stock" (hereinafter called the
"Series 2 Stock") and thirteen  thousand one hundred eighty  (13,180)  shares of
the Class C  Preferred  Stock of the  Corporation  are hereby  constituted  as a
series of Class C Preferred  Stock,  $.00001 par value per share, and designated
as "Class C Series 3 Voting Convert ible Preferred  Stock"  (hereinafter  called
the "Series 3 Stock";  the Series 2 Stock and the Series 3 Stock are hereinafter
collectively called the "1996 Convertible Preferred Stock").

      2.    Liquidation.  Upon any voluntary or involuntary dissolution, 
liquidation, or winding
up of the Corporation (a "Liquidation"), the holder of each share of each series
 of 1996 Convertible
Preferred Stock then outstanding shall be entitled to be paid out of the assets 
of the Corporation

                                       18

<PAGE>



available for  distribution  to its  stockholders,  before any  distribution  of
assets shall be made to the holders of Common Stock of the Corporation or to the
holders of other stock of the  Corporation  that ranks  junior to such series of
the  1996  Convertible  Preferred  Stock  in  respect  to  distributions  upon a
Liquidation of the  Corporation  ("Junior  Stock"),  an amount equal to $100 per
share (the "Stated  Value"),  plus an amount equal to all dividends  (whether or
not  declared  or due)  accrued  and  unpaid on such share on the date fixed for
distribution of assets of the Corporation to the holders of the 1996 Convertible
Preferred  Stock. The Series 2 Stock and Series 3 Stock shall rank pari passu in
right to distributions  on Liquidation,  shall rank senior to the Class A Voting
Preferred  Stock and Class B 8% Preferred  Stock of the  Corporation,  and shall
rank junior to the Class C Series 1 Preferred Stock of the Corporation.  Neither
a consolidation or merger of the Corporation with or into any other entity,  nor
a  merger  of any  other  entity  with or into  the  Corporation,  nor a sale or
transfer of all or any part of the  Corporation's  assets for cash or securities
or any other property, shall be considered a Liquidation.  Written notice of any
Liquidation  shall be given to the  holders  of the 1996  Convertible  Preferred
Stock not less than thirty days prior to any payment date stated therein.

      3.    Conversion.

      3.1 On the Conversion  Date (as hereinafter  defined),  each share of 1996
Convertible  Preferred  Stock  shall be  converted  automatically,  without  any
further action by the holder thereof or by the  Corporation,  into shares of the
Corporation's  Common Stock (the  "Conversion  Shares") at a conversion price of
(a) in the case of the Series 2 Stock, $.05 per share (as adjusted,  the "Series
2 Conversion  Price"),  subject to the next sentence and certain  adjustments as
described below, and (b) in the case of the Series 3 Stock, $.0625 per share (as
adjusted, the "Series 3 Conversion Price"; the Series 2 Conversion Price and the
Series 3  Conversion  Price are each  hereinafter  referred to as a  "Conversion
Price"), subject to certain adjustments as described below.  Notwithstanding the
foregoing,  from and after the date on which the Stock  Purchase  Agreement (the
"Purchase Agreement") to be entered into among the Corporation, the purchaser or
purchasers named therein (the "Purchaser"), and Ramesh C. Pandey shall have been
terminated  as a result of a default  by the  Purchaser  on its  obligations  to
purchase the Second Shares,  Third Shares,  or Fourth Shares (each as defined in
the  Purchase  Agreement),  the Series 2  Conversion  Price  shall be $.0625 per
share,  subject to the  adjustments  described  below.  The number of Conversion
Shares  into which the shares of 1996  Convertible  Preferred  Stock held by any
person are so converted  shall equal the aggregate  Stated Value thereof divided
by the  applicable  Conversion  Price then in effect,  calculated to the nearest
1/100th of a share, subject to Section 3.4.

      3.2 If the Corporation  shall (a) pay a dividend or make a distribution on
its  outstanding  shares of Common  Stock in shares  of its  Common  Stock,  (b)
subdivide its outstanding shares of Common Stock, or (c) combine its outstanding
shares of Common  Stock into a smaller  number of shares,  then each  Conversion
Price in effect  immediately  prior to such action shall be adjusted so that the
holder of any shares of 1996 Convertible  Preferred Stock  thereafter  converted
into Common Stock shall receive the number of  Conversion  Shares which he would
have owned  immediately  following such action had the Conversion  Date occurred
immediately prior thereto. An adjustment made pursuant to this Section 3.2 shall
become effective immediately after the record date in the case

                                        2

<PAGE>



of a dividend or distribution and shall become effective  immediately  after the
effective date in the case of a subdivision,  combination,  or reclassification.
No  adjustment  in  either  Conversion  Price  shall  be  required  unless  such
adjustment  would  result  in an  increase  or  decrease  of at least 1% in such
Conversion Price as then in effect; provided, however, that any adjustments that
by reason of this sentence are not required to be made shall be carried  forward
and taken into account in any subsequent adjustment.

      3.3 If the  Corporation  shall  consolidate  or merge into or with another
corporation,  or if the Corporation  shall sell or convey to any other person or
persons  all or  substantially  all of the assets of the  Corporation,  or shall
issue by  reclassification  of its shares of Common  Stock any shares of capital
stock of the  Corporation,  each share of the 1996  Convertible  Preferred Stock
then outstanding shall entitle the holder thereof to receive the kind and amount
of shares of stock,  other  securities,  cash and property  receivable upon such
consolidation, merger, sale or conveyance by a holder of the number of shares of
Common Stock into which such share would have been  converted had the Conversion
Date  occurred  immediately  prior  to  such  consolidation,   merger,  sale  or
conveyance, and shall have no other conversion rights.

      3.4 In connection  with the  conversion of any shares of 1996  Convertible
Preferred Stock, no fractions of shares of Common Stock shall be issued, but the
Corporation  shall pay a cash adjustment in respect of such fractional  interest
in an amount equal to a like  fraction of an amount  equal to the closing  sales
price of a share of the Corporation's  Common Stock on the National  Association
of Securities  Dealers Automated  Quotation System (or, if that shall not be the
principal  market on which the Common Stock shall be trading or quoted,  then on
such  principal  market,  or, if the  Common  Stock  shall not then be listed or
traded on any established market, such price as shall be determined by the Board
of Directors in good faith) on the business day preceding the Conversion Date.

      3.5 The Corporation  shall use its best efforts to, as soon as practicable
after the first issuance of the 1996  Convertible  Preferred  Stock,  (a) file a
proxy or information  statement  relating to, and call and hold a meeting of, or
obtain the  written  consent of, the  stockholders  of the Company to approve an
amendment (the "Amendment") to the Corporation's Certificate of Incorporation to
increase  its  authorized  Common  Stock so as to provide  sufficient  shares of
Common Stock for issuance on conversion of the 1996 Convertible  Preferred Stock
(on a basis as if all of the  authorized  shares of 1996  Convertible  Preferred
Stock were then outstanding), (b) obtain stockholder approval of such Amendment,
and (c) file the Amendment.  The "Conversion Date" shall be the date of the last
to occur of (d) the filing of the Amendment and (e) the day after the closing of
the issuance of the Fourth Shares or the  termination of the Purchase  Agreement
as a result of a default by the  Purchaser  on its  obligations  to purchase the
Second  Shares,  Third  Shares,  or Fourth  Shares.  The Company shall give each
holder of 1996  Convertible  Preferred  Stock prompt notice of the filing of the
Amendment.

      3.6 As soon as practicable  after receiving notice from the Corporation of
the  Conversion  Date,  each holder of 1996  Convertible  Preferred  Stock shall
surrender his  certificate(s)  evidencing  such shares to the Corporation or its
transfer agent at the place designated in such notice and shall

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thereupon be entitled to receive  certificates  for the  Conversion  Shares into
which such  shares of 1996  Convertible  Preferred  Stock  have been  converted.
Notwithstanding that the certificates  evidencing any shares of 1996 Convertible
Preferred Stock shall not have been  surrendered,  from and after the Conversion
Date, the shares of 1996  Convertible  Preferred Stock shall no longer be deemed
outstanding, the holders thereof shall cease to be holders of the shares of 1996
Convertible  Preferred Stock, all rights  whatsoever with respect to such shares
shall  forthwith  terminate  except only the right of the holders to receive the
Conversion   Shares   deliverable  on   conversion,   upon  surrender  of  their
certificates therefor, and such holders shall for all purposes be deemed holders
of such Conversion  Shares.  The issuance of  certificates  for shares of Common
Stock upon the conversion of shares of 1996 Convertible Preferred Stock shall be
made without charge to the holders of shares of 1996 Convertible Preferred Stock
for any issue or stamp tax in respect of the issuance of such certificates,  and
such  certificates  shall be issued in the respective names of, or in such names
as may be directed by, the holders of shares of 1996 Convertible Preferred Stock
converted;  provided, however, that the Corporation shall not be required to pay
any tax which may be payable in respect of transfer involved in the issuance and
delivery  of any such  certificate  in a name  other  than that of the holder of
shares of 1996 Convertible Preferred Stock converted,  and the Corporation shall
not be required to issue or deliver such certificates unless or until the person
or persons  requesting the issuance  thereof shall have paid to the  Corporation
the  amount of such tax or shall have  established  to the  satisfaction  of the
Corporation that such tax has been paid.

      4.  Dividends.  Each  holder of shares of the 1996  Convertible  Preferred
Stock  shall be  entitled  to  receive,  when and as  declared  by the  Board of
Directors, but only out of surplus and capital legally available for the payment
of  dividends,  such  dividends as would have been  received by such holder with
respect to the  Conversion  Shares  underlying  such shares of 1996  Convertible
Preferred  Stock if the Conversion Date had occurred on the record date for such
dividend.  The 1996 Convertible  Preferred Stock shall be entitled to receive no
other or preferred  dividends.  The Series 2 Stock and Series 3 Stock shall rank
pari passu in right to  dividends  and junior to any series of capital  stock of
the Corporation which ranks senior to the 1996 Convertible Preferred Stock.

      5.    Voting Rights.

      5.1 The holders of the shares of 1996 Convertible Preferred Stock shall be
entitled  to cast a number of votes per share held equal to the number of shares
of Common Stock into which such share of 1996 Convertible  Preferred Stock would
have been converted if the  Conversion  Date had occurred on the record date for
any such vote,  voting on all matters  submitted to a vote of the  Corporation's
stockholders.

      5.2 Except as  otherwise  provided  herein or by law,  the holders of 1996
Convertible  Preferred Stock and the holders of Common Stock shall vote together
as  one  class  on  all  matters  submitted  to  a  vote  of  the  Corporation's
stockholders.

      6.    Holders; Notices.  The term "holder" or "holders" wherever used 
herein with respect
to a holder or holders of shares of 1996 Convertible Preferred Stock shall mean
 the holder or holders

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of record of such  shares as set  forth on the  stock  transfer  records  of the
Corporation.  Whenever any notice is required to be given under this Certificate
of Designation, such notice may be given personally or by mail. Any notice given
to a holder of any share of 1996 Convertible Preferred Stock shall be sufficient
if given to the holder of record of such share at the last address set forth for
such holder on the stock transfer records of the  Corporation.  Any notice given
by mail shall be deemed to have been given when  deposited in the United  States
mail with postage thereon prepaid.  The Company shall send to the holders of the
1996  Convertible  Preferred Stock copies of any notices,  statements,  or other
communications  sent to the holders of the Common  Stock and of the setting of a
record date for the holders of the Common Stock for any purpose.

      IN WITNESS  WHEREOF,  Xechem  International,  Inc. has caused this Amended
Certificate  of  Designation,  Preferences,  and  Rights of the Class C Series 2
Voting  Convertible  Preferred  Stock  and  Class C Series 3 Voting  Convertible
Preferred Stock to be executed by its duly  authorized  officer this 18th day of
November, 1996.

                           XECHEM INTERNATIONAL, INC.


                            By: /s/ Ramesh C. Pandey
                                             Ramesh C. Pandey, President

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