Synonyms: 2-[2-Methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl]ethyl 4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-carboxylate, Risperidone Imp. F (EP), 2-(6,7,8,9-Tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl 4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinecarboxylate (ACI), 1-Piperidinecarboxylic acid, 4-(6-fluoro-1,2-benzisoxazol-3-yl)-, 2-(6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl ester (ACI)
