| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Yellow powder | Confirms |
| Melting point | 124.0℃~128.0℃ | 126.6℃ |
| Moisture | ≤0.5% | 0.12% |
| 3-amino-N-n-butyl phthalimide | ≤3.5% | 1.63% |
| N-n-butyl phthalimide | ≤0.5% | 0.28% |
| 4-nitro-N-n-butyl phthalimide | ≤0.5% | 0.35% |
| Other total impurities | ≤1.5% | 0.71% |
| Purity | ≥96.0% | 97.50% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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