項目Item 測試標準Test Criterion 結果Result 外觀Appearance 白色結晶粉末 white crystalline powder 白色結晶粉末 white crystalline powder 比旋度Specific rotation min 44.0°(c=1, 1N HCl) 45.9° 含量Assay min 99% 99.4% 光學純度Optical purity (HPLC) L-HPA≥99.0% D-HPA≤1% 99.72% 干燥失重Loss on drying max 0.2% 0.05% 灼燒殘渣Residue on Ignition max 0.4% 0.2% 非動物源性Non- animal origin 符合Conforms 符合Conforms