organic compounds
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The title compound, C15H13BrN2O3·H2O, exists in an E conformation with respect to the azomethane C=N double bond. The benzene and phenyl rings form dihedral angles of 0.46 (2) and 4.90 (3)°, respectively with the central C(=O)N2C unit. An intramolecular O—HN hydrogen bond occurs. In the crystal, some hydrazide molecules are replaced by molecules of the 6-bromo isomer. The Br atom from this admixture was refined to give a partial occupancy of 0.0443 (19). A supramolecular network is built in the lattice by means of intermolecular N—HO and two O—HO interactions together with non-classical C—HO interactions involving the lattice water molecule stacking the molecules along the b-axis direction.