Synonyms: Benzenesulfonicacid, 2-[(9,10-dihydro-1,4-dihydroxy-9,10-dioxo-2-anthracenyl)amino]-5-methyl-,monosodium salt (9CI); m-Toluenesulfonic acid,6-[(1,4-dihydroxy-2-anthraquinonyl)amino]-, sodium salt (8CI); Alizarinheliotrope; Alizarine Heliotrope; Alizarine Heliotrope BB; Alizarine HeliotropeR; C.I. 60885