Synonyms: 2-[2-[(5-Methoxy-3-methyl-2-benzoxazolinylidene)methyl]-1-butenyl]-3-(3-sulfopropyl)benzothiazoliumhydroxide, inner salt (7CI); Benzoxazolium,5-methoxy-3-methyl-2-[2-[[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]methyl]-1-butenyl]-,hydroxide, inner salt; Benzoxazolium, 5-methoxy-3-methyl-2-[2-[[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]methyl]-1-butenyl]-,inner salt (9CI);Anhydro(3,3'-sulfopropyl-2-benzothiazole)(5-methoxy-3-methyl-2-benzoxazole)-b-ethyltrimethinecyanine hydroxyde