Synonyms: Benzenesulfonicacid, 4,4'-[(1,4-diamino-2,3-anthraquinonylene)dioxy]di-, disodium salt (8CI);Benzenesulfonic acid,4,4'-[(1,4-diamino-9,10-dihydro-9,10-dioxo-2,3-anthracenediyl)bis(oxy)]bis-,disodium salt (9CI);Acid Violet 42;C.I. 62026;C.I. Acid Violet 42