1H-Pyrazole-3-carboxylic acid, 4-(3-(3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl)-2-propenylidene)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-,sodium salt, compd. with N,N-diethylethanamine 4-(3-(3-Carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl)-2-propenylidene)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid, sodium and triethylamine salts 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, sodium salt, compound with triethylamine 90066-12-9 EINECS 290-098-3