Synonyms: | Phenol,4-[(4-nitrophenyl)azo]- (9CI); Phenol, p-[(p-nitrophenyl)azo]- (6CI,7CI,8CI);4-(4'-Nitrophenylazo)phenol; 4-(p-Nitrophenylazo)phenol;4-Hydroxy-4'-nitroazobenzene; 4-Nitro-4'-hydroxyazobenzene;4-[(4-Nitrophenyl)azo]phenol; 4'-Nitro-4-hydroxyazobenzene; NSC 45166;p-Hydroxy-p'-nitroazobenzene; p-Nitrophenylazophenol |