(E)-4-Bromo-N′-(4-hydroxy-3-methoxybenzylidene)benzohydrazide monohydrate

In the title compound, C15H13BrN2O3·H2O, the dihedral angle between the two benzene rings is 13.92 (6)°. The methoxy group of the 4-hydroxy-3-methoxyphenyl is almost coplanar with its bound benzene ring, as seen by the Cmethyl—O—C—C torsion angle of −0.35 (16)°. In the crystal, molecules are linked into a three-dimensional network by N—H⋯O, O—H⋯N and O—H⋯O hydrogen bonds and also weak C—H⋯O interactions. A short C⋯O contact of 3.0191 (15) Å is also present.