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2-(4-Hydroxy-phenyl)-3h-benzoimidazole-4-carboxylic acid

2-(4-Hydroxy-phenyl)-3h-benzoimidazole-5-carboxylic acid

2-(4-Hydroxyphenyl)-3-methyl-4-quinolinecarboxylic acid

2-(4-Hydroxyphenyl)-5-pyrimidinol

3-Methoxy-2-nitrobenzoic acid

2-(4-Hydroxy-phenyl)-6-methyl-quinoline-4-carboxylic acid

2-(4-Hydroxyphenyl)acetaldehyde

2-(4-Hydroxyphenyl)propionic acid

2-(4-Hydroxy-phenyl)-thiazole-4-carboxylic acid ethyl ester

2-(4-Hy.droxyphenylazo)benzoic acid