Acta Cryst. (2008). E64, o2380 [ doi:10.1107/S1600536808037550 ]
Abstract: The title compound, C9H10BrNO4S, is an intermediate for the formation of benzothiazines. In the crystal structure, intermolecular N-HO hydrogen bonds link the molecules, forming R22(10) ring motifs, which are linked into a two-dimensional polymeric sheet through intermolecular C-HO hydrogen bonds.
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