1-Amino-4-(3-amino-4-sulphoanilino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonic acid 128-99-4 2-Anthracenesulfonic acid, 1-amino-4-((3-amino-4-sulfophenyl)amino)-9,10-dihydro-9,10-dioxo- EINECS 204-926-8