3,4-Di­fluoro-2-hy­droxy­benzoic acid

In the title compound, C₇H₄F₂O₃, an intra­molecular O—H...O hydrogen bond is observed. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R₂²(8) ring motifs. These dimers are linked by C—H...O and C—H...F hydrogen bonds, forming sheets lying parallel to (30-1). The sheets are linked by aromatic π–π stacking inter­actions [inter-centroid distance = 3.7817 (9) Å], forming a three-dimensional structure.