2-Anthracenesulfonic acid, 1-amino-4-((4-((4-((4-((4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino)phenyl)amino)-1,4-dioxo-2-butenyl)amino)-3-sulfophenyl)amino)-9,10-dihydro -9,10-dioxo-, trisodium salt 2-Anthracenesulfonic acid, 1-amino-4-((4-((4-((4-((4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino)phenyl)amino)-1,4-dioxo-2-butenyl)amino)-3-sulfophenyl)amino)-9,10-dihydro-9,10-dioxo-, trisodium salt 71873-44-4 EINECS 276-120-4 Trisodium 1-amino-4-((4-((4-((4-((4-amino-9,10-dihydro-9,10-dioxo-3-sulphonato-1-anthryl)amino)phenyl)amino)-1,4-dioxobut-2-enyl)amino)-3-sulphonatophenyl)amino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate