Item

Specifications

Appearance

White crystalline powder

Solubility

Clear Solution

Assay ,%

98.5 ~ 101.5

Identification

Infrared Absorption

Sulfate(SO4),%(as SO4)

≤0.03

Loss on drying,%

≤0.4

Residue on ignition  ,%

≤0.1

Iron(as Fe),%

≤0.003

Heavy metals (as Pb),%

≤0.0015

Chloride(as CI),%

19.0-19.6

Specific optical rotation

+20.4°— +21.4°

Chromatographic purity,%

Individual impurity  ≤0.5

Total impurities  ≤2.0

Organic volatile impurities

Meet the requirements

Related substance

Meets with the requirements

Shelf Life

2 years