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Cefixime
chemical name:Cefixime
cas no.:79350-37-1
appearance:white or off-yellow crystalline powder
assay:99%min

Item of testing  Standard Result 
Characters A white or light yellow crystalline powder Complies
Assay ≥99.0% 99.3%
Specific rotation  -77~88 -82
Identify
 
The retention time of the major peak corresponds to that of the standard sample conforms
  The infrared absorption time spectrum exhibits maximum only at the same wavelengths as that of the standard sample conforms
Acidity 2.6-4.1 3.7
Related substances Single impurity≤0.5%
Total impurities≤0.3%
0.1%
0.2%
methanol Not more than 0.3% 0.004%
ethanol Not more than 0.5% N.D
acetone Not more than 0.5% 0.4%
Ethyl acetate Not more than 0.5% N.D
tetrahydrofuran Not more than 0.072% N.D
water 9.0%-12.0% 10.4%
Sulphated ash Not more than 0.2% <0.1%
Heavy Metals Not more than 20% conforms
Conclusion The product conforms to CP2010