BETA-环柠檬醛

4,4,8-trimethyl-1-oxaspiro[2.5]oct-7-ene

4,4,6-trimethyl-5-methylidene-7-oxabicyclo[4.1.0]heptane

2,3-二氢-2,2,6-三甲基苯甲醛

methyl 2,6,6-trimethyl-3-oxocyclohexene-1-carboxylate