Products
Products
Melatonin
Structural formula：
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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