Exhibit 21.1
American Pharmaceutical Partners, Inc.
List of Subsidiaries
| 1. | Pharmaceutical Partners of Canada (Ontario, Canada) |
| 2. | Webdrugsource.com, Inc. (California) |
| 3. | APP International, Inc. (Delaware) |
| 4. | Pharmaceutical Partners of Europe B.V. (Netherlands) |
| 5. | Pharmaceutical Partners of Europe C.V. (Netherlands) |
| 6. | APP Pharmaceuticals Partners of Switzerland (Switzerland) |
| 7. | South African Pharmatech (Pty) Limited (South Africa) |