4-Cyano­benzaldehyde isonicotinoylhydrazone monohydrate: a three-dimensional hydrogen-bonded ­framework structure

In the title compound, C₁₄H₁₀N₄O·H₂O, the mol­ecular components are linked into a three-dimensional framework by three hydrogen bonds, one each of the O—H...O, O—H...N and N—H...O types, weakly augmented by two C—H...O hydrogen bonds.