4,5-Dihydro-5-oxo-1H-pyrazole-3-carboxylic acid

4,4'-BIS[3-CARBOXY-5-OXO-1-(4-SULFOPHENYL)-2-PYRAZOLIN-4-YL]PENTAMETHINE OXONOLE DIPOTASSIUM SALT REACTIVE ORANGE 14 Ethyl 5-oxo-1-phenyl-2-pyrazoline-3-carboxylate Ethyl 5-Oxo-4,5-dihydro-1H-pyrazole-3-carboxylate 5-Oxo-1-phenyl-2-pyrazolin-3-carboxylic acid

1-(4'-Sulfophenyl)-3-carboxy-5-pyrazolone Pigment Red 38 4,4'-BIS[3-CARBOXY-5-OXO-1-(4-SULFOPHENYL)-2-PYRAZOLIN-4-YL]TRIMETHINE OXONOLE DIPOTASSIUM SALT Tartrazine Sodium 5-oxo-1-(4-sulfophenyl)-4H-pyrazole-3-carboxylate

1,1'-BIS(4-SULFOPHENYL)-3,3'-DICARBOXY-5,5'-DIHYDROXYPYRAZOLO-4,4'-TRIMETHINE OXONOLE TETRASODIUM SALT 4,5-dihydro-5-oxo-1-(4-sulphophenyl)-4-[(4-sulphophenyl)azo]-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 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 FOOD YELLOW NO 4 ALUMINUM LAKE

LABOTEST-BB LT00451863 Methanaminium, N,N,N-trimethyl-, salt with 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-(4-sulfophenyl)azo-1H-pyrazole-3-carboxylic acid (3:1) METHYL 1-[2,6-DICHLORO-4-(TRIFLUOROMETHYL)PHENYL]-4-(2-[2,6-DICHLORO-4-(TRIFLUOROMETHYL)PHENYL]HYDRAZONO)-5-OXO-4,5-DIHYDRO-1H-PYRAZOLE-3-CARBOXYLATE