5-Bromo-3-ethylsulfiny1-7-methy1-2-(4-methylphenyI)-1-benzofuran

In the title compound, C18H17BrO2S, the dihedral angle between the mean planes of the benzofuran and 4-methyl phenyl rings is 14.54 (5). In the crystal, molecules are linked via pairs of pi-pi interactions between the benzene and 4methylphenyl rings, with centroid-centroid distances of 3.811 (3) and 3.755 (3) angstrom. A similar interaction is found between the furan and 4-methylphenyl rings, with a centroidcentroid distance of 3.866 (3) angstrom between neighbouring molecules. The molecules are stacked along the a-axis direction. In addition, a short Br center dot center dot center dot O contact distance of 3.128 (2)angstrom is observed between inversion-related dimers.