organic compounds
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The crystal structure of hydrochlorothiazide form II, C7H8ClN3O4S2, was solved by simulated annealing from laboratory X-ray powder diffraction data collected at room temperature to 1.76 Å resolution. Subsequent Rietveld refinement yielded an Rwp of 0.0376 to 1.49 Å resolution. The molecules crystallize in the space group P21/c with one molecule in the asymmetric unit. The structure is stabilized by three N—HN and one N—HO hydrogen-bonded intermolecular interaction.