Synonyms: Benzothiazolium,2-[2-methyl-3-[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]-1-propenyl]-3-(3-sulfopropyl)-,hydroxide, inner salt; Benzothiazolium,2-[2-methyl-3-[3-(3-sulfopropyl)-2(3H)-benzothiazolylidene]-1-propenyl]-3-(3-sulfopropyl)-,inner salt (9CI); Benzothiazolium, 2-[2-methyl-3-[3-(3-sulfopropyl)-2-benzothiazolinylidene]propenyl]-3-(3-sulfopropyl)-,hydroxide, inner salt (8CI); Thiacarbocyanine hydroxide,anhydro-3,3'-disulfopropyl-9-methyl- (8CI);3,3'-Disulfopropyl-9-methylthiacarbocyanine betaine; NK 2012; Thiacarbocyanine betaine,3,3'-disulfopropyl-9-methyl-