Melatonin (CAS:73-31-4)(USP 38)
$150.00
Product name:Melatonin
Standard:USP38 CAS No.:73-31-4 Characteristics: A white to off-white crystalline powder. Slightly soluble in water,soluble in acetone, ethyl acetate and methanol. Packaging and Storage: Preserve in tight containers, protected from light. Shelf life: 2 Years
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RESULT OF ANALYSIS | |||||
ITEM | STANDARD | Method | |||
Identification | IR | Usp | |||
UR | Usp | ||||
HPLC | Usp | ||||
Chloride and sulfate | ≤0.02% | Usp | |||
Loss on drying | ≤1.0% | Usp | |||
Residue on ignition | ≤0.1% | Usp | |||
Heavy metals | As | ≤1ppm | ≤10ppm | Usp | |
Lead | ≤3ppm | ||||
Mercuy | ≤0.1ppm | ||||
Cadmium | ≤1ppm | ||||
Impurities | Individual impurity | ≤0.1% | Usp | ||
Total imprity | ≤1.0% | Usp | |||
Assay(on the dried basis) | 98.5~101.5% | USP | |||
CONCLUSION: COMPLY WITH THE REQUIREMENTS OF USP38. |
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Description
Additional information
Weight | 1 kg |
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