7-(1,2,3,4,5-pentamethyl-2,4-cyclopentadienyl)-7-tridecanol

反式-2-甲基-2-丁烯醛

3,5-dimethyl-hepta-2,5-dien-4-ol

反式-2,3,4,5-四甲基-2-环戊烯酮

1-(1,2,3,4,5-五甲基-2,4-环戊二烯-1-基)乙酮