98%:
外观Appearance 白色、灰白色或黄白色结晶粉末 红外光谱鉴别Infrared spectrometry 符合 纯度Purity 98.0 - 102.0% (银量滴定) 纯度Purity ≥98.0% (HPLC) 熔点Melting point 149°C - 152°C 干燥损失Loss on drying <0.5 % (105°C) 比旋光度Specific rotation [a]20/D +18.5°~ +20.5°(c=6, ethanol) 品级Grade 植物细胞培养测试级 (plant cell culture tested) 外观Appearance 白色至类白色粉末 红外光谱鉴别Infrared spectrometry Conforms 纯度Purity ≥98.0% (HPLC) 熔点Melting point 149°C - 152°C 干燥损失Loss on drying <0.5 % (105°C) 醇溶解试验solubility in ETHANOL 50 MG/ML,Clear colorless to light yellow solution 比旋光度Specific rotation [a]20/D +18.5°~ +20.5°(c=6, ethanol)
品级Grade USP级 (meets USP testing specifications) 鉴别试验Identity PASS 熔点Melting point 149°C - 153°C 比旋光度Specific rotation [a]20/D +17.0 ° ~ +20.0 ° 结晶试验Crystallinity PASS PH TEST 4.5 ~ 7.5 色谱纯度Chromatographic purity PASS 含量ASSAY 97.0% ~ 103.0% 溶剂残留Residual solvents MEETS THE REQUIREMENTS
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