2(1H)-Quinolinone, 3,4-dihydro-1-methyl-6-(1-oxo-3-(4-phenyl-1-piperazinyl)propyl)-, ethanedioate (1:1)

Oxalic acid--1-methyl-6-[3-(4-phenylpiperazin-1-yl)propanoyl]-3,4-dihydroquinolin-2(1H)-one (1/1)