2-Naphthalenecarboxamide, 3-hydroxy-4-((4-methyl-2-nitrophenyl)azo)-N-(2-methylphenyl)- 3-Hydroxy-4-((4-methyl-2-nitrophenyl)azo)-N-(o-tolyl)naphthalene-2-carboxamide 6535-47-3 EINECS 229-441-9