67905-62-8 Carbamic acid, (4-((4-amino-2-methylphenyl)azo)phenyl)-, methyl ester EINECS 267-683-7 Methyl (4-((4-amino-(o-tolyl))azo)phenyl)carbamate N-(4-(4-Amino-2-methylphenylazo)phenyl)carbamic acid, methyl ester