CAS number： 42461-84-7
Molecular formula： C21H28F3N3O7
molecular weight： 491.4581
Chemical structure：
| Products name | Flunixin Meglumine | |
| Shelf life | 4 years | |
| Test item | specification | results |
| Appearance | A white almost white and in Methanol, paractically insoluble in acetone | conforms |
| Identification1 | water: Free absorption 197M U itraviolet absorptin: 197U | conforms |
Apperance of solution | Clear and not more intensely coloured than refernce solution | conforms |
| Melting point | 137-140 | 137.5-138.6 |
| PH | 5% water solution 7.0--9.0 | 7.85 |
| Related substances | 2-chloropyridibe-3carboxylic acid 2-methyi-3(trifluromethyl)aniline ≤0.2% pheny amino pyridine--3-carboxylate ≤0.2% | undelted |
| Impurities | Single impurity not more than 0.2 unknow impurity not more than 0.2% Total impurities not more than 0.5% | conforms |
| specific optical rotation | 9.0--12.0 | conforms |
| solvent residue | single impurity not more than 0.2 unknow impurity not more than 0.5% | conforms |
| Bacterial endotoxine | not more than 4.54 | 0.1 |
| Loss on drying | ≤ 0.5% | 0.05% |
| sulphated ash | ≤0.1% | 0.1% |
| residue on oginition | ≤0.2% | conforms |
| Conclusion:Comply with USP | ||
