chemical name:Cefixime
cas no.:79350-37-1
appearance:white or off-yellow crystalline powder
assay:99%min
| Itemoftesting | Standard | Result |
| Characters | Awhiteorlightyellowcrystallinepowder | Complies |
| Assay | ≥99.0% | 99.3% |
| Specificrotation | -77~88 | -82 |
| Identify | Theretentiontimeofthemajorpeakcorrespondstothatofthestandardsample | conforms |
| Theinfraredabsorptiontimespectrumexhibitsmaximumonlyatthesamewavelengthsasthatofthestandardsample | conforms | |
| Acidity | 2.6-4.1 | 3.7 |
| Relatedsubstances | Singleimpurity≤0.5% Totalimpurities≤0.3% | 0.1% 0.2% |
| methanol | Notmorethan0.3% | 0.004% |
| ethanol | Notmorethan0.5% | N.D |
| acetone | Notmorethan0.5% | 0.4% |
| Ethylacetate | Notmorethan0.5% | N.D |
| tetrahydrofuran | Notmorethan0.072% | N.D |
| water | 9.0%-12.0% | 10.4% |
| Sulphatedash | Notmorethan0.2% | <0.1% |
| HeavyMetals | Notmorethan20% | conforms |
| Conclusion | TheproductconformstoCP2010 | |