Methyl 2-(5-chloro-3-methyl­sulfinyl-1-benzofuran-2-yl)acetate

The title compound, C(12)H(11)ClO(4)S, was prepared by the oxidation of methyl 2-(5-chloro-3-methyl­sulfanyl-1-benzofuran-2-yl)acetate with 3-chloro­peroxy­benzoic acid. The O atom and the methyl group of the methyl­sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. The crystal structure is stabilized by aromatic π–π inter­actions between the benzene rings of neighbouring mol­ecules [centroid-to-centroid distance = 3.809 (2) Å], and by C—H⋯π inter­actions between a methyl H atom and the furan ring of an adjacent mol­ecule. In addition, the crystal structure exhibits inter­molecular C—H⋯O hydrogen bonds.