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. This effect may lead to elevated levels of norepinephrine and an increase in energy expenditure and fat oxidation. It also means quercetin acts as an antihistamine leading to relief of allergies and asthma.
Product Name:：Sophora Japonica Extract Quercetin 
Active Ingredient: Quercetin Powder
Specification: 95% , 98% HPLC
Appearance: Yellow fine powder
CAS Number: 117-39-5
Molecular Weight:302.23
Molecular Formula:C15H10O
Certification of Analysis:
| Specification
| Results
|
Assay
| Quercetin ≥98%
| 98.50%
|
Appearance
| Pale Yellow powder
| Complies
|
Heavy metals
| ≤20ppm
| Complies
|
Pb
| ≤5.0ppm
| Complies
|
As
| ≤3.0ppm
| Complies
|
Ignition residue
| ≤5.0%
| 2.34%
|
Loss on drying
| ≤10.0%
| 6.65%
|
Mesh Size
| 95% pass 80 mesh
| Complies
|
Resin
| Negative
| Complies
|
Total of bacteria
| ≤1000cfu/g
| Complies
|
Fungi
| ≤100cfu/g
| Complies
|
Salmgosella
| Negative
| Complies
|
Coli
| Negative
| Complies
|
Storage
| Store in cool & dry place. Keep away from strong light and heat
|
Shelf life
| 2 years when properly stored
|
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