| Label | Id | |
|---|---|---|
| Crolibulin | 177518 | |
| Cryptodiol | 207791 | |
| Cryptotriol | 207796 | |
| Cupriachelin | 212770 | |
| Cuprizon | 177802 | |
| Cyanoginosin | 177791 | |
| Cyclo(D)-Pro-(D)-Ile | 201772 | |
| Cyclo-(L-Ala-trans-4-hydroxy-L-Pro) | 201077 | |
| Cyclododecanone | 177614 | |
| Cycloolivil | 167779 | |
| Cyclopentadecanolide | 177420 | |
| Cyclosulfoxicurvularin | 227766 | |
| Cys-Gln-His | 161277 | |
| Cys-Gly-Tyr | 161377 | |
| Cys-Met-Thr-His | 183177 |