florfenicol
technical data sheet
chemical name:
[r-(r*, r*)]-n-[1-(fluoromethyl)-2-hydroxy-2-(4-(methylsulforyl)phenyl)-ethyl]-2,2-dichloroacetamide; 2,2-dichloro-n-[(1r,2s)-3-fluoro-1-hydroxy-1-(4-methylsulfonylphenyl)propan-2-yl]acetamide moleculor formula : c12h14cl2fno4s
molecular weight: 358.21
cas#: 73231-34-2 (76639-94-6)
molecular structure: 
specifications:
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items
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specifications
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results
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| appearance | white crystalline powder | white crystalline powder |
| identification | the rt is same with standard sample in hplc system | conforms |
| ph | 4.5 ~ 7.0 | 5.10 |
| melting point | 153℃ ~ 158℃ | 154.5℃~155.5℃ |
| optical rotation | -15° ~ -20° | -17.8° |
| loss on drying | ≤ 0.50% | 0.10% |
| heavy metal | ≤ 0.002% | conforms |
| total impurities | ≤ 2.0% | 0.70% |
| max impurity | ≤ 0.50% | 0.24% |
| assay (anhydrous) | 98% min | 99.3% |
| conclusion | this conforms to enterprise standard | |
properties: white crystalline powder
therapeutic category: antibacterial (veterinary)
storage: store in original container in a cool dark place.
packing: in 25kg drums with plastic inner.