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
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项目 Items |
标准参数 Specificati*** |
结果 Results |
|
外观 Appearance |
White or slight grety powder |
Complies |
|
鉴别 Identification |
H-1 NMR spectrum |
Complies |
|
单个杂质(HPLC) Individual impurity |
<0.5% |
0.25% |
|
总杂 Total impurity(HPLC) |
<2.0% |
0.95% |
|
熔点 Melting point |
126.0-132.0℃ |
129.8-130.7℃ |
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干燥失重 Drying loss |
≤0.5% |
0.10% |
|
含量 Assay (HPLC) |
≥98.0% |
99.2% |
|
结果 Results |
The product conforms to the above specificati*** |
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