1,2,3,4,5-pentamethylcyclopenta-2,4-dien-1-ol

三羰基五甲基环戊二烯基铼

1,2,3,4,5-pentamethylcyclopenta-2,4-diene-1-carbaldehyde

1,2,3,4-四甲基-5-亚甲基环戊并-1,3-二烯

1-Chloro-2,3,4,5,6-pentamethylbenzene