title: 5-Cyclo-pentyl-3-methyl-sulfinyl-2-phenyl-1-benzofuran.
abstract: In the title compound, C(20)H(20)O(2)S, the cyclo-pentyl ring adopts an envelope conformation with the flap atom connected to the benzofuran residue. The phenyl ring makes a dihedral angle of 32.36 (9)° with the mean plane of the benzofuran fragment. In the crystal, mol-ecules are linked through weak C-H⋯O inter-actions. In the cyclo-pentyl ring, two adjacent C atoms are disordered over two sets of sites with site occupancy factors of 0.675 (8) and 0.325 (8).
authors.forename: Hong Dae
authors.initials: HD
authors.lastname: Choi
authors.forename: Pil Ja
authors.initials: PJ
authors.lastname: Seo
authors.forename: Byeng Wha
authors.initials: BW
authors.lastname: Son
authors.forename: Uk
authors.initials: U
authors.lastname: Lee