(2)

鑒別

Identification

           紅外光譜應(yīng)與對照品一致                       IR conforms to the reference

(3)

透光率

Transmittance of solution

≥95%

(4)

旋光度

Specific Rotation

-68.2?！?/span>-72.0。

(5)

熔點

Melting   Point

233～238℃

（6)

干燥失重

Loss on drying

≤ 0.5%

(7)

熾灼殘渣

Residue on ignition

≤ 0.1%

(8)

重金屬

Heavy metal

≤ 10ppm

(9)

氯限量

Limit of chloride

≤ 0.007%

(10)

氨限量

Limit of Ammonia

  ≤ 0.0004%

(11)

硫酸鹽限量

Limit of sulfate salt

≤ 0.02%

(12)

含量：按干燥品計算       Assay (on the dried basis)

98.0%~102%

(13)

純度

HPLC

≥98%