4-ETHYL-7-HYDROXY-CHROMEN-2-ONE

4-ETHYLIDENE-2-METHYL-2-OXAZOLIN-5-ONE

4-CHLOROBENZALDEHYDE S-(4-NITROPHENYL)THIOOXIME

4-CHLOROBENZYL METHYL SULFIDE

4-CHLOROPHENYL 1-({1-[(4-CHLOROPHENYL)SULFONYL]-2-PYRROLIDINYL}CARBONYL)-3,5-DIMETHYL-1H-PYRAZOL-4-YL SULFIDE

4-CHLOROPHENYL DIFLUOROMETHYL SULFONE

4-CHLOROPHENYL N-(2,6-DICHLOROPHENYL)CARBAMATE

4-CHLOROPHENYL N-(O-TOLYL)CARBAMATE

4-CL-BENZENESULFONIC ACID 4-(3-(4-CHLORO-PHENYL)-3-OXO-PROPENYL)-PHENYL ESTER

4-FORMYL-2-METHOXYPHENYL N-(4-FLUORO-3-NITROPHENYL)CARBAMATE

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

4-CYANOBENZALDEHYDE METHYLPHENYLHYDRAZONE

4-CYANOPHENYL N-(2-METHOXYPHENYL)CARBAMATE

4-HO-2-OXO-1-PENTYL-1,2-2H-QUINOLINE-3-CARBOXYLIC ACID (PYRIDIN-3-YLMETHYL)AMIDE

4-HO-2-OXO-1-PR-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID N'-PROPIONYL-HYDRAZIDE