4'-CYCLOHEXYLACETOPHENONE

4-CYCLOHEXYL-3-THIOSEMICARBAZIDE

4-CYCLOPROPYL-5-(4-METHYL-1,2,3-THIADIAZOL-5-YL)-4H-1,2,4-TRIAZOLE-3-THIOL

4-CYCLOPROPYL-6-HYDRAZINO-1,3,5-TRIAZIN-2-AMINE

4'-Demethylepipodophyllotoxin

4-DEOXY-4-FLUORO-D-MANNOSE

4-DEOXYPYRIDOXINE 5-PHOSPHATE

4-DICHLOROMETHYL-4-METHYL-2,5-CYCLOHEXADIENONE

4-DIETHYLAMINOPHENYL ISOTHIOCYANATE

4-DIMETHYLAMINOPHENYLAZOPHENYL-4'-MALEIM