EINECS 256-458-9, 1-[(4-Methoxy-2-nitrophenyl)azo]-2-naphthol, 2-Naphthalenol, 1-[(4-methoxy-2-nitrophenyl)azo], 2-Naphthalenol, 1-((4-methoxy-2-nitrophenyl)azo), 2-Naphthalenol, 1-(2-(4-methoxy-2-nitrophenyl)diazenyl), 2-Naphthalenol, 1-[2-(4-methoxy-2-nitrophenyl)diazenyl]