| Label | Id | |
|---|---|---|
| Chlortrianisestrol | 3641 | |
| Chlortrianisoestrolum | 3641 | |
| Chlortrianizen | 3641 | |
| Chlothixen | 3651 | |
| Chromax | 50369 | |
| Chrysanthemumsaeure | 3680 | |
| Chrysarobin | 3686 | |
| Chrysophansaeure | 3687 | |
| Cidofovir | 3696 | |
| Cimetag | 3699 | |
| Citicoline | 16436 | |
| ClY | 53678 | |
| CldAdo | 567361 | |
| Clovoxamin | 36813 | |
| TY | 73667 |