112142-36-6 12237-86-4 12238-73-2 2-Anthracenesulfonic acid, 4,4'-((methylenebis(4,1-phenyleneimino))bis(1-amino-9,10-dioxo-, disodium salt 2-Anthracenesulfonic acid, 4,4'-(methylenebis(4,1-phenyleneimino))bis(1-amino-9,10-dihydro-9,10-dioxo-, disodium salt 25826-34-0 4,4'-Bis(4-amino-3-sulfo-1-anthraquinonylamino)diphenylmethane, disodium salt Disodium 4,4'-(methylenebis(4,1-phenyleneimino))bis(1-amino-9,10-dihydro-9,10-dioxoanthracene-2-sulphonate) EINECS 247-287-0 Methane, bis(4-((4-amino-3-sulfo-1-anthraquinonyl)amino)phenyl)-, disodium salt