| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White to creamy crystalline powder | Conforms |
| Melting point | 150℃~155℃ | 153℃ |
| Loss on drying | ≤0.1% | 0.05% |
| Related substances | Methyl-4-acetylamino-2-methoxybenzoate: ≤0.2% | 0.02% |
| Singly other impurity: ≤0.25% | 0.10% | |
| Methyl-4-acetylamino-5-bromo-2-methoxybenzoate:≤0.10% | 0.05% | |
| Assay | 98.0%~101.0% | 99.10% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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