2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-9,10-dioxo-4-((3-sulfophenyl)amino)-, disodium salt 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-9,10-dioxo-4-(m-sulfoanilino)-, disodium salt 25492-74-4 Disodium 1-amino-9,10-dihydro-9,10-dioxo-4-(m-sulphonatoanilino)anthracene-2-sulphonate EINECS 247-031-8