1-((4-(1,1-Dimethylethyl)phenyl)amino)-4-((sulfo-4-(1,1-dimethylethyl)phenyl)amino)anthraquinone, sodium salt 72659-70-2 Benzenesulfonic acid, 2(or 5)-(1,1-dimethylethyl)-5(or 2)-((4-((4-(1,1-dimethylethyl)phenyl)amino)-9,10-dihydro-9,10-dioxo-1-anthracenyl)amino)-, sodium salt