| Product Name | Melatonin | Batch Number | GW20220910A | ||
| Quantity | 295.5kg | Standard | USP42 | ||
| Manufacture Date | Sep. 10, 2022 | Expiry Date | Sep. 09, 2024 | ||
| Items | Specifications | Results | |||
| Identification | IR | Conform | |||
| UV | Conform | ||||
| HPLC | Conform | ||||
| Chloride and sulfate | 0.02%MAX | <0.02% | |||
| Loss on drying | 1.0%MAX | 0.07% | |||
| Residue on ignition | 0.1%MAX | 0.06% | |||
| Heavy metals | Pb | 1ppmMAX | <1ppm | ||
| As | 1.5ppmMAX | <1.5ppm | |||
| Hg | 1.5ppmMAX | <1.5ppm | |||
| Cd | 0.5ppmMAX | <0.5ppm | |||
| Impurities | Individual impurity | 0.1%MAX | 0.034% | ||
| Total impurity | 1.0%MAX | 0.17% | |||
| Assay(on the dried basis) | 98.5-101.5% | 99.52% | |||
| Conclusion | COMPLY WITH THE REQUIREMENTS OF USP42 | ||||
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