The asymmetric unit of the title compound, C(8)H(8)N(2)O(4)S(2), contains one half of a centrosymmetric mol-ecule. A short C⋯O distance of 3.012 (4) Å between the carbonyl groups of neighbouring mol-ecules indicates the presence of dipole-dipole inter-actions. The crystal packing exhibits also weak inter-molecular O⋯S [3.239 (3) Å] and C-H⋯O inter-actions.
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