英语释义
1. a hypothetical radical C3H5 of which mesityl oxide was once regarded as the oxide and acetone as the hydroxide
2. either of two univalent radicals C9H11 derived from mesitylene by removal of one hydrogen atom:
3. the substituted phenyl radical (CH3)3C6H2?
4. the substituted benzyl radical (CH3)2C6H3CH2?; 3,5-dimethyl-benzyl — called also alpha-mesityl