In the title molecule, C24H25N3O2, the piperazine ring adopts a chair conformation. The methoxyphenyl-substituted ring makes a dihedral angle of 6.79 (5)° with the quinoline ring system. In the crystal, molecules are consolidated in the crystal packing by a combination of weak C—H...N and C—H...O interactions. π–π stacking interactions also occur.
