Acta Cryst. (2001). E57, o976-o977 [ doi:10.1107/S1600536801015379 ]
Abstract: The title compound, C9H10O5S, crystallizes with two independent molecules in the asymmetric unit. Hydrogen bonding between these planar molecules gives rise to dimeric species, which produce a crystal structure composed of sheets, stacked parallel to the c axis.
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