Exhibit (d)(18)
                                August 25, 2000



Prof. Andrew Myers
c/o ChiRex, Inc.
300 Atlantic Street
Suite 402
Stamford, CT  06901

          Re:  Extension of Term of Consulting Agreement
               -----------------------------------------

Dear Prof. Myers:

          Reference is hereby made to (i) that certain consulting agreement,
dated as of March 1, 1999 (the "Consulting Agreement"), between you and ChiRex,
Inc. (the "Company") and (ii) that certain Agreement and Plan of Merger, dated
as of the date hereof (the "Merger Agreement"), among Rhodia, a French
corporation ("Parent"), Cousin Acquisition, Inc., a Delaware corporation and
wholly owned subsidiary of Parent, and the Company.

          Subject to the consummation of the Offer (as such term is defined in
the Merger Agreement), you hereby agree to extend the term of the Consulting
Agreement through December 31, 2001.

          This letter agreement may be executed in separate counterparts, each
of which is deemed to be an original and all of which taken together constitute
one and the same agreement.

          Please acknowledge your agreement with the foregoing by signing in the
space below.


                              CHIREX INC.


                              By:  /s/ Thomas I.H. Dubin
                                  Name: Thomas Dubin
                                  Title:  VP, General Counsel & Secretary


Agreed and accepted:


/s/ Andrew Myers Aug. 25, 00
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Andrew Myers