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What is it about?
The title molecule, C5H5N5O3S, is approximately planar, with a maximum deviation from the mean plane through the non-H atoms of 0.182 (3) Å for the amine N atom. In the crystal, molecules are connected via N-H...O and N-H...S interactions, building a three-dimensional hydrogen-bonded network. Additionally, a weak intramolecular N-H...O hydrogen bond is observed.