title: 4-(Methyl-sulfon-yl)benzaldehyde.
abstract: In the crystal of the title compound, C(8)H(8)O(3)S, the mol-ecules are linked into a three-dimensional array by inter-molecular C-H⋯O hydrogen bonds.
authors.forename: Shao-Song
authors.initials: SS
authors.lastname: Qian
authors.forename: Hong-You
authors.initials: HY
authors.lastname: Cui