The molecule is an organic chloride salt composed of {diazenediylbis[(4,1-phenylene)(6-methyl-1,3-benzothiazole-2,5-diyl)methylenesulfanediyl]}bis[(dimethylamino)-N,N-dimethylmethaniminium] and chloride ions in a 1:2 ratio. It has a role as a histological dye and a fluorochrome. It is an iminium salt and an organic chloride salt. It contains an alcian yellow cation.
[dimethylamino-[[2-[4-[[4-[5-[[dimethylamino(dimethylazaniumylidene)methyl]sulfanylmethyl]-6-methyl-1,3-benzothiazol-2-yl]phenyl]diazenyl]phenyl]-6-methyl-1,3-benzothiazol-5-yl]methylsulfanyl]methylidene]-dimethylazanium;dichloride