6-Bromo-4-oxo-4H-chromene-3-carb­alde­hyde

In the title compound, C(10)H(5)BrO(3), a brominated 3-formyl­chromone derivative, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0420 Å), with the largest deviation from its mean plane [0.109 (2) Å] being found for the ring-bound carbonyl O atom. In the crystal, mol­ecules are linked through halogen bonds [Br⋯O = 3.191 (2) Å, C—Br⋯O = 167.32 (10)° and C=O⋯Br = 168.4 (2)°] along [101]. Mol­ecules are assembled into layers parallel to (101) via π–π stacking inter­actions along the b axis [shortest centroid–centroid distance between the pyran and benzene rings = 3.495 (2) Å].