5-[3-(2-hydroxy-1,3,4,5-tetramethylcyclopent-3-en-1-yl)propyl]-2,3,4,5-tetramethylcyclopent-2-en-1-ol

1,2,3,4,5-五甲基环戊二烯

四甲基(正丙基)环戊二烯

(2,3,4,5-tetramethylcyclopenta-1,3-dien-1-yl)benzene

(2,3,4,5-tetramethylcyclopenta-2,4-dien-1-yl)benzene