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                              CAMBREX CORPORATION
 
                                                                      EXHIBIT 21
 
                           SUBSIDIARIES OF REGISTRANT
 


SUBSIDIARY                                                    INCORPORATED IN:
- ----------                                                    ----------------
                                                           
CasChem, Inc. ..............................................  Delaware
Cosan Chemical Corp. .......................................  New Jersey
Nepera, Inc. ...............................................  New York
The Humphrey Chemical Co., Inc. ............................  Delaware
Chiragene, Inc. ............................................  Delaware
Salsbury Chemicals, Inc. ...................................  Iowa
Zeeland Chemicals, Inc. ....................................  Michigan
BioWhittaker, Inc. .........................................  Delaware
Seal Sands Chemicals Limited................................  England
Profarmaco S.r.l. ..........................................  Italy
Nordic Synthesis AB.........................................  Sweden
BioWhittaker Europe s.p.r.l. ...............................  Belgium