外观Appearance White to off-white powder
溶解试验Solubility Clear colorless to slight hazy faint yellow solution( 50mg/ml in 80% acetic acid)
红外光谱鉴别Infrared spectrometry Conforms to structure
纯度Purity(HPLC) ≥98.0 %
比旋光度Specific rotation [a]20/D -0.4 to 0.4 °(C = 2 ,water, 25 °C)
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