Synonyms: [1,1'-Bianthracene]-3,3'-disulfonicacid, 4,4'-diamino-9,9',10,10'-tetrahydro-9,9',10,10'-tetraoxo-, disodium salt(7CI,8CI,9CI); [1,1'-Bianthraquinone]-3,3'-disulfonic acid, 4,4'-diamino-,disodium salt (6CI); 4,4'-Diamino-3,3'-disulfo-1,1'-bianthraquinone disodiumsalt; Disodium 4,4'-diamino-1,1'-dianthraquinone-3,3'-disulfonate; Disodium4,4'-diaminodianthraquinone 3,3'-disulfonate