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        2. 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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