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      中文
      Products

      Products

      Melatonin
      Structural formula:Melatonin

      Product Name: Melatonin
      Molecular Formula: C13H16N2O2
      Molecular Weight: 232.28
      CAS#: 73-31-4

          ITEM

       STANDARD

      RESULT

      Identification:Positive

      Positive reaction

      Positive reaction

      Loss on drying

      0.5% MAX

               0.26%

      Residue on ignition

      0.5% MAX

       

      0.17%

      Heavy metal

                10 ppm MAX

       

              Conform

      Individual  impurity

                 0.1% MAX

       

              Conform

      Total impurities

                 1.0% MAX

       

              Conform

                Assay(TCL

      ≥99.0%

              ≥99.0%

               Assay(HPLC)

      ≥99.0%

               99.57%

      Melting point

       

      117~120℃

           118.3~118.5℃

      CONCLUSION : COMPLY WITH THE REQUIREMENT BP2018/USP39

       


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