| Epirizole | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Ethers | Details |
| Eperisone | Organic compounds | Organic oxygen compounds | Organooxygen compounds | Carbonyl compounds | Details |
| Enviomycin | Organic compounds | Organic acids and derivatives | Carboxylic acids and derivatives | Amino acids, peptides, and analogues | Details |
| Ditazole | Organic compounds | Organoheterocyclic compounds | Azoles | Oxazoles | Details |
| Diosmin | Organic compounds | Phenylpropanoids and polyketides | Flavonoids | Flavonoid glycosides | Details |
| Dimetacrine | Organic compounds | Organoheterocyclic compounds | Quinolines and derivatives | Benzoquinolines | Details |
| Dexetimide | Organic compounds | Organoheterocyclic compounds | Piperidines | Benzylpiperidines | Details |
| Demexiptiline | Organic compounds | Benzenoids | Not Available | Not Available | Details |
| Cyclopentamine | Organic compounds | Organic nitrogen compounds | Organonitrogen compounds | Amines | Details |
| Cyamemazine | Organic compounds | Organoheterocyclic compounds | Benzothiazines | Phenothiazines | Details |
| Barbexaclone | Organic compounds | Organoheterocyclic compounds | Diazines | Pyrimidines and pyrimidine derivatives | Details |
| Cloperastine | Organic compounds | Benzenoids | Benzene and substituted derivatives | Diphenylmethanes | Details |
| Clocapramine | Organic compounds | Organoheterocyclic compounds | Benzazepines | Dibenzazepines | Details |
| Clobutinol | Organic compounds | Benzenoids | Benzene and substituted derivatives | Phenylbutylamines | Details |
| Batroxobin | Organic Compounds | Organic Acids | Carboxylic Acids and Derivatives | Amino Acids, Peptides, and Analogues | Details |
| Clinofibrate | Organic compounds | Benzenoids | Benzene and substituted derivatives | Diphenylmethanes | Details |
| Chlorphenoxamine | Organic compounds | Benzenoids | Benzene and substituted derivatives | Diphenylmethanes | Details |
| Cefaloridine | Organic compounds | Organoheterocyclic compounds | Lactams | Beta lactams | Details |
| Articaine | Organic compounds | Organoheterocyclic compounds | Thiophenes | Thiophene carboxylic acids and derivatives | Details |
| Carmofur | Organic compounds | Organoheterocyclic compounds | Diazines | Pyrimidines and pyrimidine derivatives | Details |
| Beclamide | Organic compounds | Benzenoids | Benzene and substituted derivatives | Not Available | Details |
| Carbazochrome | Organic compounds | Organoheterocyclic compounds | Indoles and derivatives | Not Available | Details |
| Befunolol | Organic compounds | Organoheterocyclic compounds | Benzofurans | Not Available | Details |
| Captodiame | Organic compounds | Benzenoids | Benzene and substituted derivatives | Diphenylmethanes | Details |
| Canrenoic acid | Organic compounds | Lipids and lipid-like molecules | Steroids and steroid derivatives | Androstane steroids | Details |
| Butriptyline | Organic compounds | Benzenoids | Dibenzocycloheptenes | Not Available | Details |
| Brotizolam | Organic compounds | Organoheterocyclic compounds | Thienodiazepines | Not Available | Details |
| Bromopride | Organic compounds | Benzenoids | Phenol ethers | Aminophenyl ethers | Details |
| Bromhexine | Organic compounds | Benzenoids | Benzene and substituted derivatives | Phenylmethylamines | Details |
| Bisacodyl | Organic compounds | Benzenoids | Benzene and substituted derivatives | Diphenylmethanes | Details |