性状                                                    白色结晶性粉未，无臭
               透光率                                                 ≥95.0%
               鉴别                                                    红外图谱与标准图谱一致
               比旋度                                                 -68.0°～-72.0°
               酸碱度                                                 应符合规定
               干燥失重                                             ≤0.5%
               炽灼残渣                                             ≤0.1%
               重金属                                                ≤10ppm
               氨限量                                                ≤0.0004%
               氯限量                                                ≤0.007%
               硫酸盐限量                                         ≤0.02%
               色谱纯度                                            ≤0.2%
               单一相关杂质                                      ≤0.2%
               总相关杂质                                         ≤0.5%
               含量测定                                            98.5～101.0%