1-((2-Methyl-4-chlorophenyl)azo)-2-hydroxy-3-naphthoic acid, o-ethylanilide 2-Naphthalenecarboxamide, 4-((4-chloro-2-methylphenyl)azo)-N-(2-ethylphenyl)-3-hydroxy- 4-((4-Chloro-2-methylphenyl)azo)-N-(2-ethylphenyl)-3-hydroxynaphthalene-2-carboxamide 74186-12-2 EINECS 277-750-2