三甲基乙腈

3,3-dimethyl-1-(2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenyl)pyrrolidine-2,5-dione

2,6-二甲基-2,5-庚二烯-4-酮

5,5-二甲基-1,3-环己二酮

3,3-Dimethyl-2-methylen-cyclohexen-(6)-al-(1), Pironen-aldehyd