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Cephalexin Monohydrate - Antibiotics - 鹽城鳴遠藥業有限公司、鳴遠藥業、鳴遠藥業有限公司、鹽城鳴遠藥業
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      Cephalexin Monohydrate

      CAS number: 15686-71-2

      Molecular formula: C16H19N3O5S

      molecular weight: 365.4042

      Chemical structure:

      Details

      Product Name
      Cefalexin Powder
      Shelf Life
      2 years
      Tests
      BP2012  Specifications Observations
      Appearance
      White or almost white, crystalline powder

      Almost white crystalline

      powder
      Solubility
      Sparingly soluble in water,practically insoluble in ethanol(96%) Conform
      Identification IR spectrum should be concordant with the standard Conform
      PH 4.0 to 5.5 4.9
      Specific optical rotation
      +149° to +158°(anhydrous substance) +155°
      Related substances
      Impurity B:
      Not more than 1.0%compared to the area of the 2nd peak <1.0%
      Any other impurity: Not more than 1.0%compared to the area of the 1nd peak <1.0%
      Total impurity: Not more than 3.0% <3.0%
      N,N-Dimethylaniline
      Maximum 20 ppm Not used in process
      Water 4.0%to 8.0%,determined on 0.300 g. 6.1%
      Sulphated ash Maximum 0.2%, determined on 1.0 g. <0.1%
      Assay 95.0% to 102.0% of C16H17N3O4S (anhydrous substance) 99.5%
      Density
      0.27g/ml
      RemarkThe product complies as per above BP2012 specifications.