| Cetyl isooctanoate | W9BRN2L2J2 | chemical |
| Cetyl palmitate | 5ZA2S6B08X | chemical |
| Cetyl quaternium-80 | D7Z68GMY52 | polymer |
| Cetylpyridinium Chloride | D9OM4SK49P | chemical |
| Cevimeline hydrochloride | P81Q6V85NP | chemical |
| Cevimeline hydrochloride anhydrous, trans- | N9UU9C7H5Y | chemical |
| Cevimeline, trans- | Z2BY2M7MKB | chemical |
| Cevolisiran | RW7FDT4WR6 | nucleicAcid |
| Chaenomeles cathayensis whole | JM7Q6KB6BK | structurallyDiverse |
| Chaenomeles speciosa whole | B7ZE99AJ7D | structurallyDiverse |
| Chaenomeles thibetica whole | U9N4EN2ZJF | structurallyDiverse |
| Chalcone Oxide, rel-trans- | U2AKU44C26 | chemical |
| Chalepensin | TGU8MP93CA | chemical |
| Chamaecostus cuspidatus leaf | XUN8PH2KV9 | structurallyDiverse |
| Chamaecostus cuspidatus whole | GGU8638U2B | structurallyDiverse |
| Chamazulenecarboxylic acid | CP7638L7UB | chemical |
| Chebulic acid, (+)- | VJ8PU9QFN6 | chemical |
| Chebulic acid, (-)- | G66Q7V3DPP | chemical |
| Chelerythrine hydrosulfate | RC5FDY3X64 | chemical |
| Chenodeoxycholic acid 7-sulfate disodium salt | J25D2DKM9X | chemical |
| Chenodeoxycholic acid sulfate | P474ZWT7XW | chemical |
| Chenodiol | 0GEI24LG0J | chemical |
| Chenopodiastrum murale pollen | 75QG003AD8 | structurallyDiverse |
| Chenopodiastrum murale whole | S4UKD112TK | structurallyDiverse |
| Chicanine, (+)- | AK6WE58CVU | chemical |
| Chicanine, (-)- | 3SV7G2M8V4 | chemical |
| Chicken egg yolk immunoglobulin Y | KJQ8B3AH5B | structurallyDiverse |
| Chikungunya virus LR2006 OPY1 (attenuated strain) antigen | 2RM4VT46R8 | structurallyDiverse |
| Chikungunya virus Senegal strain 37997 capsid protein | Y47FSH4J3N | protein |
| Chikungunya virus Senegal strain 37997 envelope protein E1 | VR2F8ZH764 | protein |
| Chikungunya virus Senegal strain 37997 envelope protein E2 | YS6E2GD8XA | protein |
| Chinese hamster ovary (CHO) K1 cells | 6J2493YM8Z | structurallyDiverse |
| Chinese yam | 29CIF30B1Z | structurallyDiverse |
| Chiniofon | 98F8Y85B6W | chemical |
| Chlamydomonas reinhardtii | QS58JP94CS | structurallyDiverse |
| Chlomizole | 274PA9UH62 | chemical |
| Chloral hydrate | 418M5916WG | chemical |
| Chloraminophenamide | 3A52O8YREJ | chemical |
| Chloramphenicol palmitate isomer | N3EHB2DP99 | chemical |
| Chloraniformethane | 30GSK201LJ | chemical |
| Chloranthus fortunei whole | 653E9YWX4W | structurallyDiverse |
| Chloranthus serratus whole | RZW6YBM692 | structurallyDiverse |
| Chlorantraniliprole | 622AK9DH9G | chemical |
| Chlorazifop-propargyl | BSY6GS929Z | chemical |
| Chlorbenzuron | CDU9P7M3P2 | chemical |
| Chlorbicyclen | 689LUC5Q4D | chemical |
| Chlorcyclizine hydrochloride | NPB7A7874U | chemical |
| Chlorcyclizine hydrochloride, (R)- | 87PQ7DM83B | chemical |
| Chlorcyclizine hydrochloride, (S)- | 015F8U72D9 | chemical |
| Chlorcyclizine pamoate | 73R47NSS6P | chemical |