RISPERIDONE BP IMPURITY H158697-67-7Risperidone impurity H [EP]DES(6-fluoro-1,2-benzoxazole)-2,4-difluorobenzoyl risperidoneUNII-9JFX9B33TN9JFX9B33TN3-(2-(4-(2,4-Difluorobenzoyl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido(1,2-a)pyrimidin-4-one3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one4H-Pyrido(1,2-a)pyrimidin-4-one, 3-(2-(4-(2,4-difluorobenzoyl)-1-piperidinyl)ethyl)-6,7,8,9-tetrahydro-2-methyl-DTXSID40166497