1-((3-Nitrophenyl)azo)-2-naphthol 1-((m-Nitrophenyl)azo)-2-naphthol 2-Naphthalenol, 1-((3-nitrophenyl)azo)- 2-Naphthol, 1-((m-nitrophenyl)azo)- (8CI) 6471-46-1 C.I. 12065 EINECS 229-312-7 Meta Nitro Orange MN NSC 45183