CAS number: 73231-34-2
Molecular formula: C12H14Cl2FNO4S
molecular weight: 358.21
Chemical structure:
Products name | Florfenicol | |
Shelf life | 2 years | |
Test item | Acceptatce critoroa | Results |
Solubility | Very soluble in dimethylformamide soilble in methanol sparingly soluble in Glacial acetic acid, very slighltly soluble in water or in chloroform | comform |
Identification | A Infrared Absorption--the IR spectrum is accordant with the spextrum obtained with lorfenicol RS | conforms |
B The Retention time of the major peak in the chromatogram of the sample preparation corresponds to that of the standard preparation as obtained in the assay | conforms | |
Loss on drying | Not more than 0.5% | 0.15% |
Specific optical rotation | -16℃to--19℃ | -17.9℃ |
Melting point | 152-156℃ | 155.3℃ |
PH | 4.5-7.0 | 6.3 |
Chlorides | Not more than 0.02% | ≤0.02% |
Sulphated ash | Not more thanb 0.1% | ≤0.1% |
Heavy Metals | Not more than 20ppm | ≤20ppm |
Assay | not less than 98.0% | 99.3% |
Conclusion | Complies with in-house standar |