72187-21-4 Benzenesulfonic acid, 3(or 4)-((6,7-dichloro-4-((2,6-dimethylsulfophenyl)amino)-9,10-dihydro-9,10-dioxo-1-anthracenyl)amino)-2,4(or 3,5)-dimethyl-, disodium salt Disodium 3(or 4)-((6,7-dichloro-4-((2,6-dimethylsulphonatophenyl)amino)-9,10-dihydro-9,10-dioxo-1-anthryl)amino)-2,4(or 3,5)-dimethylbenzenesulphonate EINECS 276-447-2