Melatonin

• CAS No.: 73-31-4
• Formula: C13h16n2o2
• EINECS: 232.28
• Type: Health Care Raw Materials
• Appearance: Powder
• Quality: Nutraceutical
• Model NO.: 73-31-4
• Colour: White
• Transport Package: Drum
• Specification: 25KG
• Trademark: Puyer
• Origin: Nantong
• HS Code: 2942000000
• Production Capacity: 50000mt/Year

Product Description

Items	Standards	Results
Appearance	As white crystals or crystalline powder; Almost ordorless and taste sour, Soluble in water	Complied
Identification 1) Ninhydrin test 2)Chromatographic identification 3)IR identification	Positive Should be required Should be required	1)Positive 2)Corresponds 3)Corresponds
Optical Rotation	-15.5~17.5°	-16.2°
Transmittance	≥98%	98.9%
Chlorides	≤0.02%	Confirm
Heavy metals	≤10ppm	Confirm
Arsenic	≤1ppm	Confirm
Iron	≤0.001%	Confirm
Sulfate	≤0.048%	Confirm
Ammonium	≤0.020%	Confirm
Residue on ignition	≤0.1%	0.01%
Loss on drying	≤0.05%	0.3%
Assay	≥98.0%	98.9%
Conclusion	Confirm with the requirement.