disodium 5-[[(2-carboxyphenyl)amino]sulphonyl]-2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]benzoate

Benzoic acid, 5-(2-carboxyphenyl)aminosulfonyl-2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo-, disodium salt

5-[[(2-Carboxyphenyl)amino] sulfonyl]-2-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl -1H-pyrazol-4-yl)azo]benzoic acid, disodium salt