title: 3-[(2-Formyl-thio-phen-3-yl)(hy-droxy)meth-yl]thio-phene-2-carbaldehyde.
abstract: In the title compound, C(11)H(8)O(3)S(2), the dihedral angle between the mean planes of the two thio-phene rings is 65.10 (10)°. Intra-molecular C-H⋯O inter-actions form S(6) and S(7) ring motifs. In the crystal, chains along the a axis are formed by C-H⋯O inter-actions. Adjacent chains are connected into a three-dimensional network by C-H⋯O and O-H⋯O inter-actions.
authors.forename: Lili
authors.initials: L
authors.lastname: Sun
authors.forename: Guijuan
authors.initials: G
authors.lastname: Li
authors.forename: Qing
authors.initials: Q
authors.lastname: Su