The title compound, C(10)H(14)N(4)O(2)S, exists in the amine tautomeric form. The dihedral angle between the benzene and thia-diazo-lidine rings is 66.54 (19)°. In the crystal, mol-ecules are linked by N-H⋯O and N-H⋯N hydrogen bonds into a layer parallel to the ac plane. The layers are further linked by C-H⋯O hydrogen bonds.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3152090PMC
http://dx.doi.org/10.1107/S1600536811021520DOI Listing

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