Synonyms: 2,7-Anthracenedisulfonicacid, 9,10-dihydro-9,10-dioxo-, disodium salt (7CI,8CI,9CI);Anthraquinone-2,7-disulfonic acid disodium salt;Disodium9,10-anthraquinone-2,7-disulfonate;Disodium anthraquinone-2,7-disulfonate;Sodium anthraquinone-2,7-disulfonate;