Melatonin 73 31-4 coa
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This certificate of analysis from Octagon Chemicals Limited summarizes test results for a batch of melatonin. The melatonin is a white powder, slightly soluble in water and soluble in other solvents. Tests were conducted according to USP38 standards and showed the melatonin met limits for identification, purity, heavy metals, and assay. The certificate concludes the melatonin meets USP38 standards.
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Melatonin 73 31-4 coa
- 1. OCTAGON CHEMICALS LIMITED CERTIFICATE OF ANALYSIS TEL:0086-13071891945 FAX:0086-0535-6715688 Address: ROOM 5032,NO.9 YANAN ROAD,HANGZHOU,CHINA sales@octagonchem.com Page 1 of 1 Product name Melatonin (Cas 73-31-4) Batch No. 20191103 Mfg. date 2019.11.09 Rep. Date 2019.11.11 Exp. date 2022.11.08 Packaging 25kg/Drum Test according to USP38 Test Items Standards Results Appearance White to off-white crystalline powder White powder Solubility Slight soluble in water, soluble in acetone, ethyl acetate and methanol conforms Identification IR/UV/HPLC Conforms Chloride and sulphate NMT0.02% <0.02% Related Substances(HPLC) Single impurity: NMT0.1% Total impurities: NMT1.0%% 0.051% 0.35 Loss on drying NMT1.0% 0.08% Residue on ignition NMT0.1% 0.05% Heavy metals NMT20ppm <20ppm Assay (on dried basis) 98.5%~101.5% 99.54% Conclusion It meets the requirements of USP38 Standards Storage Store in a well-closed container at ambient temperature Prepared by: LI Reviewed by: WEI Released by:Zhang