英文名称:Risperidoneepimpurityaandb; 4H-Pyrido[1,2-A]Pyrimidin-4-One, 3-[2-[4-[(2,4-Difluorophenyl)(Hydroxyimino)Methyl]-1-Piperidinyl]Ethyl]-6,7,8,9-Tetrahydro-2-Methyl-; Risperidone Ep Impurity A And Risperidone Ep Impurity B; Risperidone Impurity B (Mixture Of E/Z Isomers); Risperidal iMpurity B; 3-(2-(4-((2,4-Difluorophenyl)(Hydroxyimino)Methyl)Piperidin-1-Yl)Ethyl)-2-Methyl-6,7,8,9-Tetrahydro-4H-Pyrido[1,2-A]Pyrimidin-4-One (Risperidone Impurity); Risperidone Ep Impurity A And B (Mixture Of E And Z Isomers)