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

4-HYDROXY-2-(2-HYDROXYBENZYLIDENEHYDRAZINO)-6-METHYLPYRIMIDINE

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

4-HYDROXY-2-OXO-N-(4-OXO-2-PENTYL-3(4H)-QUINAZOLINYL)-1-PROPYL-1,2-DIHYDRO-3-QUINOLINECARBOXAMIDE

4-HYDROXY-2,6-DIMETHYL-NICOTINAMIDE

4-Hydroxy-3-methoxybenzamidoxime

4-HYDROXY-3-NITROSO-1-NAPHTHALENE-SULFONIC ACID TETRAHYDRATE

4-HYDROXY-3,5-DIMETHYL-5-[(1E)-2-METHYL-1,3-BUTADIENYL]-2(5H)-THIOPHENONE

4-Hydroxy-4-methylpent-2-ynoic acid

4-HYDROXY-5-NITRO-1,3-BENZENEDISULFONIC ACID, DIPOTASSIUM SALT

4-Hydroxy-N-(2-methoxy-5-methylphenyl)benzamide

4-HYDROXYAZOBENZENE-4'-SULFONIC ACID, DISODIUM SALT DIHYDRATE

4-HYDROXYBENZOIC (2-HYDROXYBENZYLIDENE)HYDRAZIDE

[4-Hydroxymethyl-1-(toluene-4-sulfonyl)-piperidin-4-yl]-methanol

4-I-N-(2,2,2-TRICHLORO-1-(3-(4-MEO-2-NITRO-PHENYL)-THIOUREIDO)-ETHYL)-BENZAMIDE