| Ch - Chloq | Nummer |
| α-Chaconin | 14 / # (19b) |
| Chaenomeles japonica | 16 |
| Chaerophyllum temulum | 14 |
| Chaetomium globosum | 19a |
| Chamaecyparis Spach-Arten | 14 |
| Chamaemelum nobile | 18 |
| Chamomilla recutita | |
| CHAPS | xxx |
| Chaulmoogra | 14 |
| Cheiranthus cheiri | 14 / 14a |
| Cheirosid A | 14 |
| Cheirotoxin | |
| Chelerythrin | |
| Chelerythrin-Hydrochlorid | |
| Chelidonin | xxx |
| Chelidonin Hydrochlorid | 14 |
| Chelidonium majus | 14 / 14a |
| Chenopodium ambrosioides | 14 |
| Chenopodiumöl | xxx |
| Chenopodium vulvaria | 14 |
| Chimaphilin | 16 / 13 / 18 |
| Chimonanthus praecox | 16 |
| Chinaldin | |
| Chinalizarin | 16 / 13 |
| Chinarindenbaum | 14 |
| Chinhydron | 16 |
| Chinidin | 14a / selten 18 |
| Chinidin-Hydrochlorid | |
| Chinidinsulfat-Dihydrat | |
| Chinin | xxx |
| (-)-Chinin | 14 / selten 18 |
| Chinin Hydrobromid Monohydrat | |
| Chinin Hydrochlorid | 16 / 18 |
| (-)-Chinin Hydrochlorid Dihydrat | 14 / 18 |
| Chinin-hydrogen-sulfat | 14 |
| Chinin-sulfat Dihydrat | 14 / selten 18 |
| Chinizarin | 16 |
| Chinolin | 16 / 13 / # 6 Augen |
| Chinolin-4-aldehyd | 16 / 13 |
| Chinolin-gelb | 16 |
| Chinolinol | xxx |
| Chinolinsäure | 16 |
| Chinolinsäure-anhydrid | 16 / 13 |
| 1-((2-Chinolinyl-carbonyl)-oxy)-2,5-pyrrolidin-edion | 18 / # 6 Augen |
| Chinolizidin | 14 |
| Chinomethionat | 14 / 18 / # (19b) |
| Chinon | 14 / 13 / 18 / # (19a+c) |
| Chinonamid | xxx |
| S,S-Chinoxalin-2,3-diyl-trithio-carbonat | 16 |
| O-(2-Chinoxalinyl)-O,O-di-ethyl-thio-phosphat | 14 / 4 / 19 |
| N-(Chinoxalin-2-yl)-sulfanilamid | 16 / 18 |
| Chinuclidinol | 2 |
| 3-Chinuclidon | 14 |