
Piperonylic acid (3,4-methylenedioxybenzoic acid) is a naturally derived benzoic acid derivative with a distinctive methylenedioxy functional group. This compound exhibits a melting point of 229-231°C and boiling point of 254.32±25.0°C (estimated). With a density of 1.3579 g/cm³ and refractive index of 1.509 (estimate), it serves as a key intermediate in pharmaceuticals, agrochemicals, and flavor/fragrance industries. The compound demonstrates limited water solubility but dissolves in polar organic solvents (DMSO, methanol). As a selective inactivator of trans-cinnamic acid 4-hydroxylase, it finds applications in plant biochemistry research. Storage should be in sealed containers at room temperature, protected from light and moisture.