1-((2-Nitro-4-methoxyphenyl)azo)-2-hydroxy-3-naphthoic acid o-ethylanilide 2-Naphthalenecarboxamide, N-(2-ethylphenyl)-3-hydroxy-4-((4-methoxy-2-nitrophenyl)azo)- 72088-87-0 EINECS 276-330-6 N-(2-Ethylphenyl)-3-hydroxy-4-((4-methoxy-2-nitrophenyl)azo)naphthalene-2-carboxamide