Synonyms: Benzenesulfonicacid,2,2'-[(4,8-diamino-3,7-dibromo-9,10-dihydro-9,10-dioxo-1,5-anthracenediyl)diimino]bis[5-methyl-,disodium salt (9CI); m-Toluenesulfonic acid,6,6'-[(4,8-diamino-3,7-dibromo-1,5-anthraquinonylene)diimino]di-, disodium salt(8CI)