ORGANIC CHEMISTRY Chapter 21 21.1A Nomenclature of phenols OH OH OH NO nO2 Br Cl NO 2-Nitrophenol 4-Chlorophenol 3-Bromophenol 2, 4-Dinitrophenol 2-硝基苯酚4-氯苯酚 3-溴苯酚24-二硝基苯酚 Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 21 21.1A Nomenclature of Phenols OH Cl OH NO2 OH Br 2-Nitrophenol 4-Chlorophenol 3-Bromophenol 2-硝基苯酚 4-氯苯酚 3-溴苯酚 OH NO2 NO2 2,4-二硝基苯酚 2,4-Dinitrophenol