ORGANIC CHEMISTRY Chapter l CH CH,CH CH2-CH CH3 M g CH3 n COCH CH HH H O Ch2h cha h Chlorophyll a 叶绿素 Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 1 N N N N CH3 CH2CH3 CH3 CH CH3 H Mg CH2 CH3 H O O CH3 H CH3 H O CO2CH3 H Chlorophyll a 叶绿素