4'-CHLORO-3,4,5,6-TETRACHLOROPHTHALANILIC ACID

4'-METHYL-2,2,2-TRICHLOROACETANILIDE

4-[({4-[(2,4-DIHYDROXYBENZYLIDENE)AMINO]PHENYL}IMINO)METHYL]-1,3-BENZENEDIOL

4-((2-HYDROXY-5-METHOXY-BENZYLIDENE)-AMINO)-BENZOIC ACID

4-(1-{4-[(2-BROMOBENZOYL)OXY]PHENYL}-1-METHYLETHYL)PHENYL 2-BROMOBENZOATE

4-(2-BROMOACETYL)-6-METHOXY-2-PHENYLQUINOLINE HYDROBROMIDE

4-(2-HYDROXYOCTAHYDRO-1,3,4-METHENO-2H-CYCLOBUTA(CD)PENTALEN-2-YL)PHENOL

4-(2,3-DICHLOROPHENYLAZO)-N,N-DIETHYLANILINE

4-(2,4-DIFLUOROPHENYL)-1-(2-METHYLAMINOBENZOYL)SEMICARBAZIDE

4-(2,4-DINITRO-PHENYLAMINO)-2,6-DIISOPROPYL-PHENOL

4-(2,5-DICHLOROPHENYL)-1,1-DIMETHYLSEMICARBAZIDE

4-(3-ACETOXYBENZYLIDENE)-2-METHYL-5-OXAZOLIDINONE

4-(3-BENZYLOXY-2-PROPIONYLOXY-PROPYL)-4-METHYL-MORPHOLIN-4-IUM, IODIDE

4-(3-CHLORO-4-METHYLPHENYL)-1-(2-CYANOACETYL)SEMICARBAZIDE

4-(3,4-DIMETHOXYBENZYLIDENEAMINO)ANTIPYRINE