1-Phenyl-4-(4-piperonyl-1-piperazinylcarbonyl)-2-pyrrolidinone hydrochloride 2-Pyrrolidinone, 1-phenyl-4-(4-piperonyl-1-piperazinylcarbonyl)-, hydrochloride 74203-58-0 Chlorhydrate de (piperonyl-4 piperazino-1)-(phenyl-1-pyrrolidone-2-carboxamide-4) [French]