1,2,3,4-四氢-1,1,6-三甲基萘

[R-(E)]-4-(2,6,6-三甲基-2-环己烯-1-基)-3-丁烯-2-酮

(E)-4-(1,5,5-trimethyl-7-oxabicyclo[4.1.0]heptan-6-yl)but-3-en-2-one

β-紫罗兰酮

α-紫罗兰酮