4-ACETAMIDO-3-METHOXYPHENYL THIOCYANATE

4-ACETAMIDO-N-CYANO-4'-ETHOXYBENZENESULFONANILIDE

4-ACETAMIDOPHENYL N-(2,5-DIMETHOXYPHENYL)CARBAMATE

4-BENZOYLPHENYL N-(3-CHLOROPHENYL)CARBAMATE

4-benzyl-1-(2-phenoxyethyl)piperidine hydrochloride

4-ACETYLPHENYL N-(2-FLUORO-5-NITROPHENYL)CARBAMATE

4-ACETYLPYRIDINE OXIME

4-ALLYL-2-METHOXYPHENYL N-(2-METHOXY-4-NITROPHENYL)CARBAMATE

4-Allyl-5-(3-chloro-4-methylphenyl)-4H-1,2,4-triazole-3-thiol

4-ALLYLOXY-1,7,8,9,10,10-HEXACHLORO-4-AZA-TRICYCLO(5.2.1.0(2,6))DEC-8-ENE-DIONE

4-AMINO-1-(2-(4-CL-PH)-2-((2,4-DINITRO-PH)-HYDRAZONO)-ETHYL)-PYRIDINIUM, BROMIDE

4-AMINO-1-BENZYLPYRIDINIUM BROMIDE

4-Amino-3-bromo-5-nitropyridine

4-AMINO-3-NITROPHENYL 1-BUTANESULFONATE

4-BR-2-(2-(2-(4-NITROPHENOXY)PROPANOYL)CARBOHYDRAZONOYL)PHENYL 3-METHYLBENZOATE