CAS number: 93106-60-6
Molecular formula: C19H22FN3O3
molecular weight: 359.4
Chemical structure:
Products name | Enrofloxacin Base | |
Shelf life | 3 years | |
Items | Specification | Results |
Appearance | yellow or lighy orange-yellow, crystalline powfer | yellow crystalline powder |
Mekting point | 221-226 | 222.9--224.3 |
Identigication | ||
HPLC | the retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay. | complies |
IR | The spectrum of sample conforms to that of the reference spectrum | comploes |
Test | ||
Appearance of solution | The solution is not more opalescent than reference suspension I and not more intensely coloured than reference solution Y or GY | complies |
Related substances | ||
Cirprofloxacin | not more than 0.5% | 0.08% |
Unspecified impurity | not more than 0.5% | 0.09% |
total impurities | not more than 0.7% | 0.2% |
Loss on drying | not more than 0.5% | 0.04% |
residue on ignition | not more than 0.2% | 0.05% |
Heacy metals | not more thab 0.02% | less than 0.002% |
Assay | not less than 99% | 99.5% |
conclusion: the result conforma wih do not conform with the specifications |