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The title compound, C16H15NO3S.H2O, is a derivative of benzothiazine. The molecular packing is stabilized by a three-dimensional hydrogen-bonding network. The benzothiazine ring is distorted showing a half-chair conformation. The benzene ring is planar but the methoxy group deviates significantly from planarity. A pair of intermolecular hydrogen bonds forms a centrosymmetric dimer in the crystal. There are intermolecular hydrogen bonds with a water molecule. The hydroxy(4-methoxyphenyl)methyl group and carbonyl O(20) atom are pseudo-equatorial with respect to the benzothiazine ring.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks default, k615

CCDC reference: 128476

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