(E)-N′-(3,4-Dimethoxy­benzyl­idene)-2-(8-quinol­yloxy)acetohydrazide–methanol–water (1/1/1)

In the title compound, C(20)H(19)N(3)O(4)·CH(4)O·H(2)O, the Schiff base mol­ecule is almost planar, with a dihedral angle of 1.2 (1)° between the benzene ring and the quinoline ring system. An intra­molecular N—H⋯O hydrogen bond generates an S(6) ring. In the crystal, the methanol and water solvent mol­ecules are linked to the Schiff base mol­ecule via N—H⋯O, O—H⋯O, O—H⋯N and O—H⋯(O,N) hydrogen bonds.