Synonyms: 2-[(e)-(4-chlorophenyl)diazenyl]-1,3-dimethyl-1h-imidazol-3-ium methyl sulfate;AC1L3D3Z;AC1Q22RC;AR-1D6231;1H-Imidazolium, 2-((4-chlorophenyl)azo)-1,3-dimethyl-, methyl sulfate;(4-chlorophenyl)-(1,3-dimethylimidazol-1-ium-2-yl)diazene; methyl sulfate;1H-Imidazolium, 2-(2-(4-chlorophenyl)diazenyl)-1,3-dimethyl-, methyl sulfate (1:1)