外观Appearance White Powder 红外光谱Infrared spectrometry Conforms to Structure 纯度Purity(HPLC) ≥98.0% 熔点Melting point 152 - 161 °C 水溶解试验solubility in water Colorless Clear to Very Slightly Hazy ,50 mg/mL, H2O 比旋光度Specific rotation [α]20/D 152 - 161 ° (C = 0.76 in H2O at 25 deg Celsius)