3,5,5-三甲基-2-环戊烯-1-酮

1-Hydroxy-2.2.4-trimethyl-cyclopentan-carbonsaeure-(1)

异佛尔酮

6-hydroxy-3,5,5-trimethylcyclohex-2-en-1-one

(4,6,6-trimethyl-2-oxocyclohex-3-en-1-yl) acetate