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_Methyl Prednisolone - Antibiotics - 鹽城鳴遠藥業(yè)有限公司、鳴遠藥業(yè)、鳴遠藥業(yè)有限公司、鹽城鳴遠藥業(yè)
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      Methyl Prednisolone

      CAS number: 83-43-2

      Molecular formula: C22H30O5

      molecular weight: 374.4706

      Chemical structure:

      Details

      Product Name
      Methyl Prednisolone
      Shelf Life
      2 years
      Specification
      USP38
      Item
      Specification
      Result
      Character
      White to almost white crystalline powder
      Almost white crystalline powder
      Specific Optical Rotation
      +79° to +86° +83.6°
      Identification
      (1)Complies by IR
      Conforms
      (2)△E/E85≤3.0% 0.4%
      (3)Positive reaction
      Positive
      Test Individual impurity not more than 1.0%
      0.26%
      Total impurities not more than 2.0%
      0.99%
      Residue on ignition
      Not more than 0.2%
      0.08%
      Loss on drying
      Not more than 1.0%
      0.5%
      Residual solvent
      Methnol not more than 3000ppm
      2ppm
      Ethanol not more than 5000ppm
      1327ppm
      Acetone not more than 5000ppm
      1ppm
      Ethyl Acetate nor more than 5000ppm
      2ppm
      Assay
      Contains 97.0% to 103.0% of C22H30O5 calculated on the dried basis
      99.8%
      Particle Size
      It should be 90% below 20um
      13.22um