| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or almost white crystalline powder | Conforms |
| Identification | IR | Conforms |
| TLC | Conforms | |
| Brownish-yellow color develops in the lower layer | Conforms | |
| The reaction of primary aromatic amines | Conforms | |
| Reaction of chlorides | Conforms | |
| Solubility | Very slightly soluble in water, slightly soluble in alcohol and in methylene chloride | Conforms |
| Appearance solution | The solution is clear and not more intensely colored than reference solution Y6 | Conforms |
| Related substances | Any impurity ≤0.20% | 0.16% |
| Total impurity ≤0.30% | 0.21% | |
| Loss on drying | ≤1.00% | 0.30% |
| Sulphated Ash | ≤0.10% | 0.06% |
| Assay | 98.5% ~100.5% | 99.50% |
| Conclusion: The Product Conforms to BP. |
||
