1-Naphthalenol, 4-((4-nitrophenyl)azo)- 1-Naphthol, 4-((p-nitrophenyl)azo)- 4-((4-Nitrophenyl)azo)-1-naphthalenol 4-((4-Nitrophenyl)azo)-1-naphthol 4-((p-Nitrophenyl)azo)-1-naphthol 4-(4-Nitrophenylazo)-1-naphthol 4-16-00-00224 (Beilstein Handbook Reference) 5290-62-0 59519-85-6 AI3-02917 BRN 0961660 EINECS 226-129-4 Magneson II Magnezon II NSC 5048 p-Nitrphenylazo-alpha-naphthol