(E)-3-(4-Chloro-phen-yl)-1-(2,4-dichloro-5-fluoro-phen-yl)prop-2-en-1-one.

In the title chalcone derivative, C(15)H(8)Cl(3)FO, the dihedral angle between the two benzene rings is 43.35 (8)°. Weak C-H⋯O and C-H⋯Cl intra-molecular inter-actions involving the enone group generate S(5) and S(6) ring motifs, respectively. In the crystal structure, mol-ecules are linked into anti-parallel chains along the a axis. These chains are stacked along the b axis and short Cl⋯F contacts of 3.100 (1) Å link adjacent mol-ecules of the anti-parallel chains into dimers.