| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Clear colorless liquid | Conforms |
| Melting point | -8℃~-12℃ | -10℃ |
| Refractive index | 1.438~1.442 | 1.440 |
| Loss on drying | ≤0.20% | 0.06% |
| Assay | ≥99.0% | 99.40% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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