The title compound (C9H7Br3) crystallizes in the triclinic space group P (1) over bar with Z=2; R = 0.043 for 1518 observed reflections [I greater than or equal to 2sigma (1)]. The average Br-C distance is 1.974Angstrom, Br-C-C angle is 110.0degrees. The five-membered ring adopts a somewhat flattened structure. The atoms Cl and C3 have opposite configurations. The whole molecule has approximate (non-crystallographic) C-s-symmetry.