3-(HYDROXYMETHYL)-1H-PYRAZOL-5-OL 5-HYDROXY-1-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID METHYL ESTER 4,4'-BIS[3-CARBOXY-5-OXO-1-(4-SULFOPHENYL)-2-PYRAZOLIN-4-YL]TRIMETHINE OXONOLE DIPOTASSIUM SALT 4,4'-BIS[3-CARBOXY-5-OXO-1-(4-SULFOPHENYL)-2-PYRAZOLIN-4-YL]PENTAMETHINE OXONOLE DIPOTASSIUM SALT ETHYL 2-[5-HYDROXY-3-(METHOXYCARBONYL)-1H-PYRAZOL-1-YL]-1,3-THIAZOLE-4-CARBOXYLATE METHYL 3-HYDROXY-1-METHYLPYRAZOLE-5-CARBOXYLATE 3-HYDROXY-4-(2-HYDROXYETHYL)-1H-PYRAZOLE-5-CARBOXYLIC ACID 1-(4-CARBOXY-PHENYL)-5-HYDROXY-1H-PYRAZOLE-3-CARBOXYLIC ACID ETHYL ESTER 3-(METHOXYMETHYL)-1H-PYRAZOL-5-OL ethyl 5-hydroxy-1-[(methylamino)carbonyl]-1H-pyrazole-3-carboxylate 4-TERT-BUTYL-3-(HYDROXYMETHYL)-1H-PYRAZOL-5-OL 4-[5-(3-carboxy-5-hydroxy-1-phenyl-1H-pyrazol-4-yl)penta-2,4-dienylidene]-4,5-dihydroxy-5-oxo-1-phenyl-1H-pyrazole-3-carboxylic acid 4-[3-[3-carboxy-5-hydroxy-1-(4-sulphophenyl)-1H-pyrazol-4-yl]allylidene]-4,5-dihydro-5-oxo-1-(4-sulphophenyl)-1H-pyrazole-3-carboxylic acid 5-METHOXY-4-NITRO-2H-PYRAZOLE-3-CARBOXYLIC ACID DIRECT ORANGE 1