(E)-N′-(5-Bromo-2-hy­droxy­benzyl­idene)-3,5-dihy­droxy­benzohydrazide monohydrate

The Schiff base mol­ecule in the title compound, C14H11BrN2O4·H2O, is almost planar with an r.m.s. deviation for the non-H atoms of 0.16 A. In the crystal structure, the Schiff base mol­ecules and the water mol­ecules are linked together by inter­molecular N—H⋯O and O—H⋯O hydrogen bonds, leading to layers parallel to the bc plane. An intra­molecular O—H⋯N hydrogen bond involving the imine N atom and a hy­droxy substituent is also observed.