Synonyms: Chromate(3-),bis[3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-(oxo-kO)-1H-pyrazol-4-yl]azo-kN1]-4-(hydroxy-kO)-5-nitrobenzenesulfonato(3-)]-,trisodium (9CI); Chromate(3-),bis[3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitrobenzenesulfonato(3-)]-,trisodium; Benzenesulfonic acid,3-[[4,5-dihydro-3-methyl-1-(4-methylphenyl)-5-oxo-1H-pyrazol-4-yl]azo]-4-hydroxy-5-nitro-,chromium complex