2-Anthracenesulfonic acid, 8-((4-(1,1-dimethylethyl)-2-sulfophenyl)amino)-9,10-dihydro-1-hydroxy-5-((1-methylethyl)amino)-9,10-dioxo-, sodium salt 72828-68-3 8-((4-(1,1-Dimethylethyl)-2-sulfophenyl)amino)-1-hydroxy-5-((1-methylethyl)amino)anthraquinone-2-sulfonic acid, sodium salt