4-BENZYL-2,6-DIPHENYLPYRYLIUM TETRAFLUOROBORATE

4-ACETYLPYRIDINE OXIME

4-ALLYL-4-PHENYL-3,5-PYRAZOLIDINEDIONE

4-ALLYL-5-(4-TERT-BUTYL-PHENYL)-4H-(1,2,4)TRIAZOLE-3-THIOL

4-AMINO-1-((DIETHYLAMINO)CARBONYL)PYRIDINIUM CHLORIDE

4-AMINO-2,5,7-TRICHLORO-9-FLUORENONE

4-AMINO-3-ET-N-(2-METHOXYETHYL)-2-THIOXO-2,3-DIHYDRO-1,3-THIAZOLE-5-CARBOXAMIDE

4-BR-2-(2-(2-(4-NITROPHENOXY)PROPANOYL)CARBOHYDRAZONOYL)PH 3,4-DIMETHOXYBENZOATE

4-BR-N-(2,2,2-TRI-CL-1-(3-(4-ETHENESULFONYL-2-MEO-PH)-THIOUREIDO)-ET)-BENZAMIDE

4-BROMO-2-[7,9-DICHLORO-2-(3,4-DIMETHOXYPHENYL)-1,10B-DIHYDROPYRAZOLO[1,5-C][1,3]BENZOXAZIN-5-YL]PHENOL

4-BIPHENYLYL N-(4-NITROPHENYL)CARBAMATE

4-BROMO-2-(2-((4-NITROPHENOXY)ACETYL)CARBOHYDRAZONOYL)PHENYL 4-METHYLBENZOATE

4-Bromo-2-fluoro-3-formylpyridine

4-Bromo-2-(1-phenyl-1H-pyrazol-5-yl)phenol

4-BROMO-BENZOIC ACID 3,4-DIMETHYL-PHENYL ESTER