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organic compounds
The title compound, C16H20N4O9S, has a strong intramolecular N—HO hydrogen bond between the nitrosyl O atom and an adjacent N—H moiety [NO 2.516 (8)Å]. The β-D-xylopyranosyl ring has a 4C1 conformation, with all non-H substituents in equatorial positions. Molecules are linked about 21 axes via intermolecular N—HO hydrogen bonds [NO 2.892 (8) Å].