3-Bromo-2-hydroxybenzaldehyde

Abstract

The mol­ecule of the title compound, C7H5BrO2, is almost planar (r.m.s. deviation from the plane of all the non-H atoms = 0.0271 Å) and displays intra­molecular O—H⋯O hydrogen bonding between the phenol group and the aldehyde O atom. Packing is directed by weak inter­molecular C—H⋯Br inter­actions and π-stacking between nearly parallel mol­ecules [dihedral angle = 5.30 (6)° and centroid–centroid distance = 3.752 (1) Å].