对***甲酰基丁酸ProuductName4-(4-Fluorobenzoyl)butyricacid对***甲酰基丁酸CASNo.149437-76-3StructureMolecularFormulaC11H11FO3MolecularWeight210.20DescriptionwhitetocreamsolidIdentification(FT-IR)c***istentwithreferenceLossondryingMaximum0.5%ResidueonignitionMaximum0.5%Assay（HPLC）Minimum97.0%p-FluorobenzoylPropionicAcid(PropylImpurity)Maximum0.3%BenzoylButyricAcid(DesfluoroImpurity)Maximum0.1%o-FluorobenzoylButyricAcid(OrthoIsomer)Maximum0.3%p-MethylbenzoylButyricAcid(ToluoylImpurity)Maximum0.3%Isopropylp-FluorobenzoylButyrate(IsopropylImpurity)Maximum0.3%Dimer1ImpurityMaximum1.0%Dimer2ImpurityMaximum0.5%OtherIndividualImpurityMaximum0.2%（each）TotalImpuritiesMaximum3.0%ProductUseEzetimibeintermediate)