2,4-Dihydroxybenzoic acid


2,4-Dihydroxybenzoic acid is a dihydroxybenzoic acid.
As a resorcylic acid, it is one of the three isomeric crystalline acids that are both carboxyl derivatives of resorcinol and dihydroxy derivatives of benzoic acid.
It is a degradation product of cyanidin glycosides from tart cherries in cell cultures. It is also a metabolite found in human plasma after cranberry juice consumption.