Also Called: 2-Naphthalenecarboxamide, 3-hydroxy-4-[(2-methyl-5- nitrophenyl)azo]-N-phenyl-;2-Naphthalenecarboxamide, 3-hydroxy-4-[2-(2-methyl-5-nitrophenyl)diazenyl]-N-phenyl-;2-Naphthalenecarboxamide, 3-hydroxy-4-[(2-methyl-5-nitrophenyl)azo]-N-phenyl-