8-propan-2-ylidene-1,4-dioxaspiro[4.5]decane

1,4-环己二酮单乙二醇缩酮

6,6-Dimethylbicyclo[3.1.1]heptan-2-one

3-isopropenyl-pentane-1,3,5-tricarboxylic acid

硫酸