1-Amino-4-((3-(ethenylsulfonyl)phenyl)amino)-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid sodium salt 14541-90-3 2-Anthracenesulfonic acid, 1-amino-4-((3-(ethenylsulfonyl)phenyl)amino)-9,10-dihydro-9,10-dioxo-, monosodium salt 34293-80-6 EINECS 238-573-6 Sodium 1-amino-9,10-dihydro-9,10-dioxo-4-(m-(vinylsulphonyl)anilino)anthracene-2-sulphonate