2-Chloroethyl 2-(5-bromo-3-methylsulfinyl-1-benzofuran-2-yl)acetate

In the title compound, C(13)H(12)BrClO(4)S, the O atom and the methyl group of the methylsulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. There is a mean deviation of 0.016 (4) angstrom from the least- squares plane defined by the nine constituent benzofuran atoms. The crystal structure is stabilized by aromatic pi-pi interactions between the benzene rings of neighbouring molecules [centroid centroid distance = 3.689 (7) angstrom] and by a weak C-H center dot center dot center dot pi interaction between an H atom of the methylene group bonded to the carboxylate O atom and the benzene ring of an adjacent molecule. In addition, the crystal structure exhibits weak non-classical intermolecular C-H center dot center dot center dot O hydrogen bonds. The chloroethyl group is disordered over two positions, with refined site-occupancy factors of 0.767 (6) and 0.233 (6).