4-((2,4-Xylyl)azo)-o-toluidinium chloride, Benzenamine,4-((2,4-dimethylphenyl)azo)-2-methyl-,monohydrochloride, EINECS 266-152-7, Benzenamine,4-(2-(2,4-dimethylphenyl)diazenyl)-2-methyl-,hydrochloride (1:1), 4-[(2,4-dimethylphenyl)diazenyl]-2-methylaniline hydrochloride, 4-[(E)-(2,4-dimethylphenyl)diazenyl]-2-methylaniline hydrochloride (1:1)