3-Ethylsulfinyl-2-(3-fluorophenyl)-5,6-methylenedioxy-1-benzofuran

In the title compound, C17H13FO4S, the 3-fluorophenyl ring makes a dihedral angle of 6.14 (5)degrees with the mean plane [r.m.s. deviation = 0.008 (1) angstrom] of the benzofuran fragment. In the crystal, molecules are linked by weak C-H center dot center dot center dot F, C-H center dot center dot center dot O and C-H center dot center dot center dot pi interactions, forming a three-dimensional network. The crystal structure also exhibits slipped pi-pi interactions between the 3-fluorophenyl rings of neighbouring molecules [centroid-centroid distance = 3.769 (2) angstrom and slippage = 1.684 (2) angstrom].