4-(1,3-benzodioxol-5-yl)but-3-enoic acid

4-[(3,4-methylenedioxy)phenyl]but-3-enoic acid

4-(benzo[1,3]dioxol-5-yl)butyric acid methyl ester

ethyl 4-(3,4-methylenedioxy)phenylbutanoate

黄樟素