项目Item 检测标准Test Criterion 结果Result 外观Appearance 白色结晶white crystal 符合Conforms 含量Assay min 98.00% 99.6% 比旋度Specific rotation -22.0~-24.0°(C=2 in MeOH) -23.5° 灼烧残渣Residue on ignition ≤0.5% 0.3% 注意事项Note 干燥密封保存Sealed dry preservation 结论CONCLUSION: This batch meets the test criterion.