China Melatonine - China Supplier

Melatonine

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Appearance: white or yellowish crystalline powder Assay: 98.5~101.5% Loss on drying: 1.0% max Residue on ignition: 0.1% max Heavy metals: 20ppm Max Related substances : Single impurity: 0.1%max Total impurities: 1.0% max Package: 25kg/fibre drum

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