organic compounds
Open access
In the title compound, C11H8O3S2, the dihedral angle between the mean planes of the two thiophene rings is 65.10 (10)°. Intramolecular C—HO interactions form S(6) and S(7) ring motifs. In the crystal, chains along the a axis are formed by C—HO interactions. Adjacent chains are connected into a three-dimensional network by C—HO and O—HO interactions.