| ITEM | STANDARD |
| Identification | Via IR Absorption |
| Specific Optical rotation | -84.3°~–86.3° |
| Chloride(As Cl) | ≤0.05% |
| Sulfate(As SO4) | ≤0.03% |
| Assay | 98.5-101.5%% |
| Iron(FE) | ≤0.003% |
| Heavy Metals(As Pb) | ≤0.0015% |
| Orgaic Volatile Impurities | Meet The Requirements |
| Chromatographic Purity | Any individual impurity not more than 0.5% Total impurity not more than 2.0% |
| Loss on drying | ≤0.4% |
| Residue on ignition | ≤0.4% |
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