2-Naphthalenecarboxamide, 4-((4-ethylphenyl)azo)-3-hydroxy-N-(4-methoxyphenyl)- 3-Hydroxy-N-(4-methoxyphenyl)-4-((4-ethylphenyl)azo)-2-naphthalene carboxamide 4-((4-Ethylphenyl)azo)-3-hydroxy-N-(4-methoxyphenyl)naphthalene-2-carboxamide 61050-41-7 EINECS 262-576-1