| Item | Specification |
| Appearance | White or almost white, crystalline crystals |
| Identification | Infrared absorption |
| Solubility | Easily dissolve in water, slightly soluble in ethanol |
| Melt point | 92 °C - 96 °C. |
| Assay(anhydrous basis) | 98.5-101.0% |
| Other Polyols (on dry base) | ≤1.0% |
| Reducing sugar | ≤0.2% |
| Water | ≤0.5% |
| Residue on ignition | ≤0.1% |
| Heavy metals | ≤10mg/kg |
| Lead | ≤0.5 mg/kg |
| Nickel | ≤1 mg/kg |
| Conductivity | ≤20μS/cm |
| Related substances | ≤2.0% |
| Total count | Max. 100CFU/g |
| Coliform | Negative |
| Yeast & Mold | Max. 100CFU/g |
