EINECS 228-812-2, C.I. Acid Yellow 76, Sodium 5-hydroxy-3-methyl-4-((4-((4-methylphenyl)sulphonyloxy)phenylazo)-1H-pyrazol-1-yl)benzenesulphonate, Benzenesulfonic acid,4-(4,5-dihydro-3-methyl-4-((4-(((4-methylphenyl)sulfonyl)oxy)phenyl)azo)-5-oxo-1H-pyrazol-1-yl)-,sodium salt, Benzenesulfonic acid,4-(4,5-dihydro-3-methyl-4-(2-(4-(((4-methylphenyl)sulfonyl)oxy)phenyl)diazenyl)-5-oxo-1H-pyrazol-1-yl)-,sodium salt (1:1),