(E)-1-(4-Bromo­phen­yl)-3-(2,4,6-trimethoxy­phen­yl)prop-2-en-1-one

The mol­ecule of the title chalcone derivative, C(18)H(17)BrO(4), is twisted, the dihedral angle between the 4-bromo­phenyl and 2,4,6-trimethoxy­phenyl rings being 39.17 (6)°. The three meth­oxy groups are oriented in two different conformations whereby two meth­oxy groups are coplanar, whereas the third is twisted with respect to the attached benzene ring [C—O—C—C torsion angles of −2.84 (18), −2.80 (18) and −9.31 (18)°]. Weak intra­molecular C—H⋯O inter­actions generate two S(5) and one S(6) ring motifs. In the crystal structure, mol­ecules are linked into supra­molecular sheets parallel to the bc plane by weak C—H⋯O inter­actions. These sheets are stacked along the a axis. The crystal structure is further stabilized by weak C—H⋯π inter­actions.