In the title mol-ecule, C13H15N3O4S, the benzene and pyrazole rings are inclined to each other at 77.48 (3)°. Two amino H atoms are involved in bifurcated hydrogen bonds, viz. intra-molecular N-H⋯O and inter-molecular N-H⋯O(N). The inter-molecular hydrogen bonds link the mol-ecules related by translation in [100] into chains. A short distance of 3.680 (3) Å between the centroids of benzene and pyrazole rings from neighbouring mol-ecules shows the presence of π-π inter-actions, which link the hydrogen-bonded chains into layers parallel to the ab plane.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3884399 | PMC |
| http://dx.doi.org/10.1107/S1600536813019326 | DOI Listing |
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