1-Amino-4-(4-amino-3-sulphoanilino)-9,10-dihydro-9,10-dioxoanthracene-2-sulphonic acid, sodium salt 2-Anthracenesulfonic acid, 1-amino-4-(4-amino-3-sulfoanilino)-9,10-dihydro-9,10-dioxo-, sodium salt 2-Anthraquinonesulfonic acid, 1-amino-4-((4-amino-3-sulfophenyl)amino)-, sodium salt 32866-11-8 EINECS 251-270-3