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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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