4-CHLORO-O-BENZOTOLUIDIDE

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

4-HO-6-METHYL-3-(1-((4-METHYLPHENYL)SULFONYL)-1H-PYRAZOL-3-YL)-2H-PYRAN-2-ONE

4-Hydrazino-8-methoxy-2-methylquinoline

4-HYDROXY-1-METHYL-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID ISOPROPYL-AMIDE

4-HYDROXY-2-(4-METHOXYPHENYL)-1-BENZOPYRYLIUM PERCHLORATE

4-Hydroxy-2-methylquinoline-6-carboxylic acid ethyl ester

4-HYDROXY-2-OXO-1,2-DIHYDRO-QUINOLINE-3-CARBOXYLIC ACID CYCLOPENTYLAMIDE

4-hydroxy-4-methyl-6-oxo-N(1),N(3),2-triphenyl-1,3-cyclohexanedicarboxamide

4-HYDROXY-6-METHYL-2-OXO-2H-CHROMENE-3-CARBALDEHYDE

4-hydroxy-9-methoxy-7-methyl-5H-furo[3,2-g]chromen-5-one

4-HYDROXY-N-(2-PHENYLETHYL)BENZENESULFONAMIDE

4-Hydroxybenzenesulfonamide

4-ETHOXYBENZALDEHYDE AZINE

4-ISOPROPYLBENZALDEHYDE PHENYLHYDRAZONE