best seller 98% Quercetin

1,CAS NO.:6151-25-3 2,MOLECULAR FORMULA & MOLECULAR Massaa:C15H10O7 302.23 3,TEST METHOD: HPLC UV 4,Yellow powder

Quercetin is a potent antioxidant and has anti-inflammatory activity, protecting cellular structures and blood vessels from the damaging effects of free radicals. It improves blood vessel strength. Quercetin inhibits the activity of catechol O -methyltransferase that breaks down the neurotransmitter norepinephrine.

ITEMS	RESULTS
Melting point	305-315°C
Loss on Drying	More than 5.5%,Less than 9% 9.0%~12.0%
Sulphated ash	Less than 0.3% ≤0.3%
Heavy Metal	≤20PPM
Assay (by UV)	More than 98% ≥98%
Total plate count Yeast & mold E.coli Salmonella	<1000cfu/g <100cfu/g Negative Negative
Melting point	305-315°C

best seller 98% Quercetin