4-HO-3-((6-HO-BENZO(1,3)DIOXOL-5-YL)-(3,4,5-TRIMETHOXY-PH)-ME)-5H-FURAN-2-ONE

4-HO-NAPHTHALENE-2-CARBOXYLIC ACID 2((3-HO-NAPHTHALENE-2-CARBONYL)AMINO)ET ESTER

4-Hydrazinoquinazoline

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

4-HYDROXY-10B,10C-DIMETHYL-10B,10C-DIHYDRO-PYRENE-2,7-DIONE

4-hydroxy-2-imino-N-(2-methoxyethyl)-1-methyl-1,2-dihydro-3-quinolinecarboxamide

4-HYDROXY-2-OXO-1-PROPYL-N-(3-PYRIDINYL)-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

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

4-Hydroxy-4-(pyridin-3-yl)cyclohexan-1-one

4-Hydroxy-6-methoxy-2-methylquinoline

4-Hydroxy-6,7-dimethoxyquinolin-2(1H)-one

4-HYDROXY-ALPHA-PHENYLHYDROCINNAMIC ACID, SODIUM SALT TRIHYDRATE

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

4-HYDROXYBENZALDEHYDE (6-TERT-PENTYL-5,6,7,8-TETRAHYDRO[1]BENZOTHIENO[2,3-D]PYRIMIDIN-4-YL)HYDRAZONE

4-HYDROXYBENZOIC (4-NITROBENZYLIDENE)HYDRAZIDE