| Item | Standard |
| Appearance | White powder |
| Solubility (1.0g/20ml H2O) | Clear Colorless |
| Specific rotation(a)D20 (C=1 , H2O) | +7.5o to +8.5o |
| Assay | 98.0-102.0% |
| Melting Point (oC) | 200oC to 210 oC |
| Heavy metals(Pb) | Not more than 20ppm |
| Chloride(C1) | Not more than 0.02% |
| Iron(Fe) | Not more than 10ppm |
| Arsenic(As2O3) | Not more than 4ppm |
| Moisture | Not more than 1.0% |
| Residue on ignition | Not more than 0.2% |
| Total plate count | Not more than 1,000cfu/g |
| Yeast and mold | Not more than 100cfu/g |
| PH | 5.0-6.0 |
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