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 |