organic compounds
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In the title compound, C15H13NO4, the dihedral angle between the substituted benzene rings is 9.9 (8)°. Part of the molecule (the salicylaldimine segment) is disordered over two sets of sites, with a refined site-occupancy ratio of 0.550 (14):0.450 (14). Intramolecular O—HN hydrogen bonds form S(6) ring motifs. In the crystal, pairs of O—HO hydrogen bonds link molecules into centrosymmetric dimers with R22(8) ring motifs. The crystal packing also features C—Hπ interactions.