ethyl 2-(5,5-dimethylcyclohex-2-en-1-yl)acetate

2-(5,5-dimethylcyclohex-2-en-1-yl)ethanol,4-methylbenzenesulfonic acid

异佛尔酮

6-ethoxy-4,4-dimethyl-7-oxabicyclo[4.1.0]heptan-2-one

5,5-二甲基-1,3-环己二酮