决奈达隆中间体141645-16-1［英文名］2-Butyl-3-(4-hydroxybenzoyl)-5-nitrobenzofuran［CAS］141645-16-1［分子式］C19H17NO5［分子量］339.34项目Items标准参数Specificati***结果Results外观AppearanceWhiteorslightgretypowderComplies鉴别IdentificationH-1NMRspectrumComplies单个杂质(HPLC)Individualimpurity<0.5%0.25%总杂Totalimpurity(HPLC)<2.0%0.95%熔点Meltingpoint126.0-132.0℃129.8-130.7℃干燥失重Dryingloss≤0.5%0.10%含量Assay(HPLC)≥98.0%99.2%结果ResultsTheproductconformstotheabovespecificati***)