2-Naphthalenecarboxamide, 4-((5-(aminocarbonyl)-2-methoxyphenyl)azo)-N-(2-ethoxyphenyl)-3-hydroxy- 2-Naphthalenecarboxyamide, 3-hydroxy-4-((5-carbamoyl-2-methoxyphenyl)azo)-N-(2-ethoxyphenyl)- 73384-83-5