Quercetin powder

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CERTIFICATE OF ANALYSIS

Products Name	QUERCETIN
Date of Reports	2020-11-24	Production Date		2020-09-10
Lot No.	20201124-01
Test Items	Standard		Result
Appearance	Yellow, crystalline powder		Yellow, crystalline powder
Solubility	Practically Insoluble in water		Complies
	Soluble in aqueous alkaline sol		Complies
Melting point	305~315℃		310℃
Identification	Must positive		Complies
Loss on drying	9.0% to 12%		9.3%
Sulphated ash	≤0.5%		0.07%
Heavy Metal	≤10PPM		＜10PPM
Mesh Size	100 pass 80 mesh		Complies
Cadmium	≤1 PPM		None
Lead	≤3 PPM		0.06PPM
Mercury	≤0.1 PPM		0.038PPM
Arsenic	≤1 PPM		None
Assay (on dry product)	≥98%（UV Method）		99.3%
	≥95%（HPLC Method）		96.5%
Total Plate count	≤1000CFU/g		Complies
Yeast & Mould	≤1000CFU/g		≤1000CFU/g
Conclusions	Comply with Standard

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Quercetin powder

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