Abstract
The structure of sulfamerazine, C11H12N4O2S, a very important sulfonamide drug, has been solved by direct methods with X-ray diffraction data collected using CuKα radiation. The crystals are orthorhombic, witha=9.145(1),b=11.704(1),c=22.884(2) Å and space groupPbca. The structure was refined with 2082 observed independent reflections, measured on a CAD-4 diffractometer, to a finalR value of 0.078. The molecule has similar conformational features to those observed in other sulfonamide drugs.
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Ravindra Acharya, K., Kuchela, K.N. & Kartha, G. Crystal structure of sulfamerazine. Journal of Crystallographic and Spectroscopic Research 12, 369–376 (1982). https://doi.org/10.1007/BF01159053
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DOI: https://doi.org/10.1007/BF01159053