4-AMINO-1-(2-ISOPROPYL-5-METHYLCYCLOHEXYL)-3,5-DIMETHYL-4H-1,2,4-TRIAZOL-1-IUM 2-AMINO-4-NITROBENZENESULFONATE

4-BENZOYL-1-(2-(2-NITROPHENYL)-2-OXOETHYL)PYRIDINIUM BROMIDE

4-BIPHENYL-4-YL-2-(4-METHOXY-PHENYL)-6-PHENYL-PYRANYLIUM, TETRAFLUORO BORATE

4-BROMO-2-((2-FLUORO-PHENYLIMINO)-METHYL)-PHENOL

4-BROMO-3-(4-METHOXY-PHENYLIMINO)-5-METHYL-1,3-DIHYDRO-INDOL-2-ONE

4-BROMO-N-(2,2,2-TRIFLUORO-1-PHENYL-ETHYL)-BENZAMIDE

4-CHLORO-BENZENESULFONIC ACID 4-(3-(4-ISOPROPYL-PHENYL)-ACRYLOYL)-PHENYL ESTER

4-CHLORO-N-(2-ETHOXY-PHENYL)-BENZAMIDE

4-ETHYL-5-OXO-4,5-DIHYDRO-1H-PYRAZOLE-3-CARBOXYLIC ACID BENZYLIDENE-HYDRAZIDE

4-HEPTYL-2,6-DIMETHYL-1,4-DIHYDRO-PYRIDINE-3,5-DICARBOXYLIC ACID DIMETHYL ESTER

4-HO-1-ME-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID (2-CHLORO-PHENYL)-AMIDE

4-HYDROXY-3-METHOXY-BENZOIC ACID HYDRAZIDE

4-IODO-N-(2,2,2-TRICHLORO-1-(3-(2-IODO-PHENYL)-THIOUREIDO)-ETHYL)-BENZAMIDE

4-ME-5-PH-2H-PYRAZOLE-3-CARBOXYLIC ACID (2-HO-3-METHOXY-BENZYLIDENE)-HYDRAZIDE

4-METHOXY-10-OXA-4-AZA-TRICYCLO(5.2.1.0(2,6))DEC-8-ENE-3,5-DIONE