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      Nitrofurantoin

      Chemical name: 1-[(5-nitrofurfurylidene)amino] hydantoin
      Molecular formula: C8H6N4O5
      Molecular weight: 238.16
      CAS: 67-20-9
      Structural formula:

      Specification:
      A: In accordance with ChP 2020 edition
      Characters: A yellow crystalline powder; odorless; the color darkens gradually in light.
      pH: 5.5~7.0
      Nitrofurazone: ≤0.01%
      Loss on drying: ≤0.5%
      Residue on ignition: ≤0.1%
      Assay: 98.0%~102.0%
      Total aerobic microbial count: Not more than 103 cfu /g
      Total yeast and mold count: Not more than 102 cfu /g
      B: Combin ation of specification in USP and EP
      Appearance: A yellow crystalline powder or yellow crystals.
      Related Substances(EP): ≤1.0%
      Loss on drying(EP): ≤1.0%
      Sulfated ash(EP): ≤0.1%
      Nitrofurazone(USP): ≤0.01%
      5-Nitrofurfural Diacetate(USP): ≤0.15%
      Any individual unspecified impurity: ≤0.10%
      Total impurities: ≤0.5%
      Assay(EP): 98.0%~102.0% of C8H6N4O5 on the dried substance.
       
      Packing size: 25Kg/drum
      Authentication code: Guo Yao Zhun Zi H37022205
      Indications: For urinary tract infections resulted by sensitive bacteria, like pyelonephritis, urinary tract infection, cystitis and prostatitis.

       
       
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