37078-96-9 4-Chloro-3-((1-(p-chlorophenyl)-3-methyl-5-oxo-2-pyrazolin-4-yl)azo), monosodium salt 4-Chloro-3-((1-(p-chlorophenyl)-3-methyl-5-oxo-2-pyrazolin-4-yl)azo)benzenesulfonic acid, sodium salt 4-Chloro-3-((4,5-dihydro-3-methyl-5-oxo-1-(4-chlorophenyl)-1H-pyrazol-4-yl)azo)benzenesulfonic acid, sodium salt Benzenesulfonic acid, 4-chloro-3-((1-(4-chlorophenyl)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-4-yl)azo)-, sodium salt Benzenesulfonic acid, 4-chloro-3-((1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-, sodium salt EINECS 253-338-8 Sodium 4-chloro-3-((1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)benzenesulphonate