项目Item 检测标准Test Criterion 结果Result 外观Appearance 白色结晶粉末 white crystalline powder 符合Conforms 含量Assay min 98.0% 99.51% 比旋度 -24.0°to-27.0°(C=1,CH3OH) -25.5° 干燥失重Loss on drying max 0.50% 0.32% 非动物来源Non-animal origin Conforms Conforms 注意事项Note 干燥密封保存Sealed dry preservation