AlcianYellowC.I.12840

[Dimethylamino-[[2-[4-[4-[5-[(dimethylaminodimethylazaniumylidenemethyl)sulfanylmethyl]-6-methyl-1,3-benzothiazol-2-yl]phenyl]diazenylphenyl]-6-methyl-1,3-benzothiazol-5-yl]methylsulfanyl]methylidene]dimethylazanium chloride