3,3',4',5,7-pentahydroxyflavone

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100 Metric Ton	Negotiable

100 Metric Ton

Negotiable

117-39-5 3,3',4',5,7-pentahydroxyflavone seller in China Sell high quality 117-39-5 produced in China factory

Certification of Analysis

TEST	STANDARD	RESULTS
Appearance	Yellow, crystalline powder	Yellow, crystalline powder
Solubility	Practically insoluble in water	Complies
Solubility	Soluble in aqueous alkaline sol.	Complies
Tests
Loss on drying	≤12.0%	10.89%
Sulphated ash	≤0.5%	0.32%
Melting point	305-315°C	310-312°C
Heavy Metal	≤20PPM	<10PPM
Mesh size	95% pass 80 mesh	100% pass 80 mesh
Assay (anhydrous substance) UV	≥98%	98.92%
Microbiological test
Total plate count	≤1000cfu/g	<1000cfu/g
Yeast & Mould	≤100cfu/g	<100cfu/g
E.Coli	Absent	Absent
Pseudomonas aeruginosa	Absent	Absent
Conclusion: the test results conform to 98% standard.

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3,3',4',5,7-pentahy...