| Testing items | Specifications | Results |
| Description | White powder or almost white powder | Conforms |
| Solubility | Conforms | Conforms |
| Identification | Have the largest absorption at 256±2nm A250/A260=0.90~1.00 A280/A260=0.62~0.72 |
256.27.1nm A250/A260=0.95 A280/A260=0.68 |
| Dissolve in dilute nitric acid, add ammonium molybdate TS, hear for a few minutes and cool,a yellow precipitate is produced | Conforms | |
| The identification of solution is sodium flame reaction | Conforms | |
| Loss on drying | ≤15.0% | 9.1% |
| Heavy metals | ≤0.001% | <0.001% |
| Protein | No turbidity is produced | Conforms |
| Purity (HPLC) | ≥90.0% | 93.8% |
| Contents(on drysis) | ≥85.0% | 103.3% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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