Synonyms: 2-Anthracenesulfonicacid, 1-amino-4-(p-aminoanilino)-9,10-dihydro-9,10-dioxo-, sodium salt (7CI);2-Anthracenesulfonic acid,1-amino-4-[(4-aminophenyl)amino]-9,10-dihydro-9,10-dioxo-, monosodium salt(9CI); Sodium1-amino-4-[(4-aminophenyl)amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate