5-Oxo-3-methyl-4-((3-(((4-methylphenyl)amino)sulfonyl)-4-methylphenyl)azo)-1-(4-sulfophenyl)pyrazole, sodium salt 72828-87-6 Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-4-((4-methyl-3-(((4-methylphenyl)amino)sulfonyl)phenyl)azo)-5-oxo-1H-pyrazol-1-yl)-, monosodium salt Benzenesulfonic acid, 4-(4,5-dihydro-3-methyl-4-((4-methyl-3-(((4-methylphenyl)amino)sulfonyl)phenyl)zo)-5-oxo-1H-pyrazol-1-yl)-, monosodium salt EINECS 276-892-2 Sodium p-(4,5-dihydro-3-methyl-4-((3-((p-tolylamino)sulphonyl)-p-tolyl)azo)-5-oxo-1H-pyrazol-1-yl)benzenesulphonate