organic compounds
In the title structure, C14H10O5, the angle between the planes formed by the 2,4-dihydroxybenzoyl and o-benzoic acid moieties is 87.12 (4)°. In addition to an intramolecular O—HO hydrogen bond, intermolecular O—HO hydrogen bonds (HO = 1.76 and 1.89 Å) connect molecules to form a two-dimensional network parallel to (10).