1-(2-PYRIDINYLAZO)-2-NAPHTHALENOL 1-(2-Pyridylazo)-2-hydroxynaphthalene 1-(2-Pyridylazo)-2-naphthol 1-(Pyridin-2-azo)-2-naphthol 2-Hydroxy-1-(2-pyridylazo)naphthalene 2-Naphthalenol, 1-(2-pyridinylazo)- 2-Naphthol, 1-(2-pyridylazo)- (8CI) 85-85-8 EINECS 201-637-9 NSC 5332 PAN (VAN) PAN (indicator)