2,2-dimethyl-6,7-methylenedioxy-4-chromanone

1-(2-hydroxy-4,5-methylenedioxyphenyl)-3-methyl-2-buten-1-one

1,3-benzodioxol-5-yl 3-methylbut-2-enoate

2H-1-Benzopyran-6-ol, 7-ethoxy-2,2-dimethyl-

硫酸二甲酯