2-Hydr­oxy-N′-(2-methoxy­naphthyl­idene)benzohydrazide

The title Schiff base compound, C(19)H(16)N(2)O(3), prepared by the reaction of 2-meth­oxy-1-naphthyl­aldehyde and 2-hydroxy­benzohydrazide, crystallizes with two independent mol­ecules in the asymmetric unit. Each mol­ecule exists in a trans configuration with respect to the methyl­idene group. The naphthyl ring system make dihedral angles of 65.0 (2)° and 55.8 (2)° with the planes of the benzene rings. Intra­molecular N—H⋯O and O—H⋯O hydrogen bonds help to stabilize the mol­ecular conformations. In the crystal structure, mol­ecules are linked into one-dimensional chains parallel to the c axis by inter­molecular O—H⋯N and O—H⋯O hydrogen bonds.