| Label | Id | |
|---|---|---|
| Carthamone | 3439 | |
| Clidinium | 3743 | |
| Coalpha-[alpha-(5,6-dimethylbenzimidazolyl)]-Cobeta-cyanocobamide | 17439 | |
| Colistin | 37943 | |
| Coproporphyrinogen | 15438 | |
| Corynebactin | 31432 | |
| Crinamidine | 31436 | |
| Crinine | 31437 | |
| Cyanocob(III)alamin | 17439 | |
| Cyanohydrin | 23437 | |
| D-Glucoside | 35436 | |
| D-alaninate | 32435 | |
| D-alaninium | 32436 | |
| D-altritol | 134311 | |
| D-arabinarate | 37543 |