| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white powder | Conform |
| Identification | IR: same absorption bands as USP hydroxypropyl betadex RS | Conforms |
| Clarity of solution: Positive | Conforms | |
| Molar substitution | 0.40~1.50 | 0.68 |
| Loss on drying | ≤10.0% | 3.8% |
| Beta cyclodextrin | ≤1.5% | 0.37% |
| Any other single impurity | ≤0.25% | Not detected |
| Total impurities | ≤1.0% | Not detected |
| Propylene oxide | ≤1ppm | 0.1ppm |
| Conductivity | ≤200uS/cm | 59.8uS/cm |
| The total Aerobic count | ≤1000cfu/g | <10cfu/g |
| The total Moulds and Yeast | ≤100cfu/g | <10cfu/g |
| Assay | ≥98.0% | 99.70% |
| Conclusion: The Product Conforms to USP. |
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