p-Nitrophenyl α-D-Mannopyranoside Hemihydrate

In the title compound, 2C₁₂H₁₅NO₈.H₂O, the pyranoside rings deviate slightly from an ideal chair conformation and the Ci05—Oi05—Ci01—Oi01—Ci07 (i = 1, 2) moieties display gauche–gauche conformations. The water molecule links two independent molecules in the asymmetric unit through O—H...O hydrogen bonds. All the hydroxyl groups are involved in hydrogen-bond inter­actions giving rise to a three-dimensional network.

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