Also Called: Benzothiazolium, 2-[[(1,3-dihydro-1,3-dimethyl- 2H-benzimidazol-2-ylidene)methyl]azo]-3-methyl -, methyl sulfate;Benzothiazolium, 2-[[(1,3-dihydro-1,3-dimethyl-2H-benzimidazol-2-ylidene)methyl]azo]-3-methyl-, methyl sulfate;Benzothiazolium, 2-[2-[(1,3-dihydro-1,3-dimethyl-2H-benzimidazol-2-ylidene)methyl]diazenyl]-3-methyl-, methyl sulfate (1:1)