2-溴-4-甲氧基-5-苄氧基苯甲醛;C.I. Pigment Red 31;2-Naphthalenecarboxamide, 3-hydroxy-4-(2-(2-methoxy-5-((phenylamino)carbonyl)phenyl)diazenyl)-N-(3-nitrophenyl)-;Pigment Red 31;(4Z)-4-{2-[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene}-N-(3-nitrophenyl)-3-oxo-3,4-dihydronaphthalene-2-carboxamide;Red Violet;3-hydroxy-4-(2-methyl-5-nitro-phenyl)azo-N-phenyl-naphthalene-2-carboxamide;disodium 5-acetamido-4-hydroxy-3-(o-tolylazo)naphthalene-2,7-disulfonate;Disodium 5-(Acetyla