| 98%:
外观Appearance 白色至浅灰色结晶粉末
纯度Purity ≥98.0%(HPLC)
纯度Purity 98.0 - 102.0 % (UV method)
熔点Melting point 126°C ～ 131°C
干燥损失Loss on drying <0.5 % (500 mg, 105°C, 2 hrs)
甲醇溶解试验Solubility in Methanol 合格
比旋度Specific rotation [a]20/D +179.0 ～ +185.0 °(C=2, Dioxane)
品级Grade USP级
(meets USP testing specifications)
鉴别试验identity pass
纯度Purity(dry basis) 97.0% to 103.0%
熔点Melting point 126°C - 183°C
比旋光度Specific rotation [α]20/D +175.0°～ +183.0°(C=2, Dioxane)
干燥损失loss on drying ≤ 0.5%
残留溶剂residual solvents usp <467> meets the requirements |
