| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Light yellow crystalline powder | Confirms |
| Solubility | Clear transparent solution | Confirms |
| Melting point | ≥168.0℃ | 170.6℃ |
| Loss on drying | ≤1.0% | 0.53% |
| Ash | ≤0.2% | 0.14% |
| Single impurity | ≤0.2% | 0.11% |
| NO2 Titration Content | 98.0%~102.0% | 99.24% |
| Acid Titration Content | 98.0%~102.0% | 99.3% |
| Purity | ≥99.0% | 99.60% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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