| Label | Id | |
|---|---|---|
| Cerebroside | 36498 | |
| Chem-Rice | 34936 | |
| Chemofuran | 44368 | |
| Chenodeoxyglycocholate | 36274 | |
| Chinazolin | 36621 | |
| Chinolin | 17362 | |
| Chinon | 36141 | |
| Chinoxalin | 36616 | |
| Chloortrianisestrol | 3641 | |
| Chloramin | 55368 | |
| Chlorazin | 3649 | |
| Chlorderazin | 3647 | |
| Chlorestrolo | 3641 | |
| Chlorethamine | 55368 | |
| Chlormethinum | 55368 |