1,3-Benzodioxole-5-carboxylic acid 98%Piperonylic acid3,4-(Methylendioxy)benzoic acid3,4-亚甲二氧基苯甲酸3,4-(Methylenedioxy)benzoic acid哌呢酸胡椒酸Piperonylic acid1,3-Benzodioxole-5-carboxylic acidPiperonylic acid1-3-Benzodioxole-5-carboxylic acidbenzo[d][1,3]dioxole-5-carboxylic acidheliotropic acid1,3-dioxaindane-5-carboxylic acid5-benzodioxolecarboxylic acidprotocatechuic acid methylene ether3,4-dioxymethylenebenzoic acid3,4-methylenedioxybenzoic acidbenzo[d][1,3]dioxole-5-carboxylic acid2H-1,3-benzodioxole-5-carboxylic acid3,4-(methylenedioxy)benzoic acidpiperonylic acid