4-CL-2-(3-FLUOROSULFONYL-4-HEXADECYLOXY-PHENYL)-QUINOLINE-6-SULFONYL FLUORIDE

4-CHLOROPHENYL MESITYL SULFONE

4-CHLOROPHENYL N-(2,5-XYLYL)CARBAMATE

4-CYANO-1-(2-(4-FLUORO-PHENYL)-2-OXO-ETHYL)-PYRIDINIUM, BROMIDE

4-CYANO-BENZENESULFONIC ACID, COMPOUND WITH P-TOLYLAMINE

4-CYANOPHENYL 1-ADAMANTANECARBOXYLATE

4-CYANOPHENYL N-(2,4-DICHLOROPHENYL)CARBAMATE

4-CYANOPHENYL N-(3,4-DICHLOROPHENYL)CARBAMATE

4-CYANOPHENYL-5-BROMO-2-FUROATE

4-CYCLOHEXYL-1-PHENYL-3-THIOSEMICARBAZIDE

4-CYCLOHEXYLANISOLE

4-CYCLOPENTYL-NAPHTHALEN-1-YLAMINE, HYDROCHLORIDE

4-DICHLOROMETHYL-2,3,5,6-TETRAMETHYL-BENZALDEHYDE

4-DIFLUOROMETHOXY-N-(2-ETHYLAMINO-5-(TRIFLUORO-METHANESULFONYL)-PH)-BENZAMIDE

4-DODECYLCARBAMOYL-1-METHYLPYRIDINIUM BROMIDE