三(2)结构简式 Condensed structural Formulas) CH3ch-ch -ch CH3 CHrChChch CHOrganic Chemistry Organic Chemistry Xiamen Xiamen University University (2) 结构简式 (Condensed Structural Formulas) CH 3 CH CH 2 CH 3 CH 3 CH 3CHCH 2CH 3 CH 3