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Natural Plant Extract Sophora Japonica Quercetin HPLC95% / UV98%

Minimum Order Quantity : 1KGS, 25KGS Packaging Details : Aluminum foil bags(1kg-3kg), cartons(1kg-20kg) and fiber drums(10kg-25kg) for Quercetin Powder
Delivery Time : 5-8 work days Payment Terms : T/T, D/P, D/A
Supply Ability : 5MT/MONTH
Place of Origin: China Brand Name: HONGDAPHARMA
Certification: ISO21000, KOSHER, HALAL, BRC Model Number: Quercetin Powder

Detail Information

Description: Quercetin Content: 95%HPLC
Color: Yellow Green Functions: Anti-oxidation
Water-solubility: Water Solubility: Almost Insoluble Part Used: Sophora Flower-bud
Sample: 20g Available Shelf Life: 2Years
High Light:

Sophora Japonica Quercetin


HPLC95% Natural Plant Extract


UV98% Natural Plant Extract

Product Description

Natural Plant Extract 98% Sophora Japonica Extract Quercetin Sophora Flower Bud

Product of Quercetin Powder 

CAS No.:117-39-5

English name: Quercetin

Molecular Formula: C15H10O7

Molecular Weight:302.2357

Appearance:Yellow to green yellow fine powder

Active ingredients: Quercetin

Specification:98%,99% by UV

Use Part : Flower /Bub

Mesh size: 100% Pass 80 Mesh

Test Method: UV



The bark of Quercus plants in the Fagus family was ground into powder, washed with hot salt water, extracted with dilute ammonia, and neutralized with dilute sulfuric acid. The filtrate is boiled to precipitate crystals. It can be extracted from Liliaceae plant onion (AllChemicalbookiumcepa) with 95% ethanol; it can also be extracted from rutin (rutin) extract and quercetin, isoquercitrin, anisin, hyperoside, quercetin, and melanitin, etc. It is obtained by hydrolysis of rutin decomposing enzyme or acidic aqueous solution.


Production methods:

1. Recovery of isoquercetin from bioflavonoids

2. Preparation method of quercetin and isoquercetin derivatives

3. Quercetin derivatives and their medical uses

4. Enzymatic hydrolysis of rutin to prepare isoquercetin and quercetin

5. A method for extracting quercetin-7-O-rhamnoside



Analysis Specification Results
Quercetin Assay (UV) ≥98% 98.32%
Identification Positive Complies
Melting Point 310℃ 303℃~314℃
Appearance Yellow powder Complies
Ash ≤5.0% 1.58%
Moisture ≤10.0% 9.44%
Pesticides Negative Complies
Heavy metals ≤10ppm Complies
Pb ≤2.0ppm Complies
As ≤2.0ppm Complies
Hg ≤1.0ppm Complies
Odor Characteristic Complies
Particle size 95% through 80 mesh Complies
Microbioiogical :
Total of bacteria ≤1000cfu/g Complies
Fungi ≤100cfu/g Complies
Salmgosella Negative Complies
Coli Negative Complies


Flowchart : Quercetin 98% UV Powder

                    Natural Plant Extract Sophora Japonica Quercetin HPLC95% / UV98% 0



Antioxidants. Mainly used in fats, beverages, cold drinks, meat processing products.
It has good expectorant, antitussive and anti-asthmatic effects. It is used to treat chronic bronchitis, and it also has an adjuvant therapeutic effect on patients with coronary heart disease and hypertension.
A flavonoid compound with anticancer activity. It is an inhibitor of mitochondrial ATPase and phosphodiesterase. It inhibits PI3 kinase activity and slightly inhibits PIP kinase activity. IC50:3.8μChemicalbookM. It has an anti-proliferative effect on cancer cell lines, reduces the growth of cancer cells through type II estrogen receptors, and blocks human leukemia T cells in the G1 late stage of the cell cycle. Inhibit fatty acid synthase activity.


Natural Plant Extract Sophora Japonica Quercetin HPLC95% / UV98% 1Natural Plant Extract Sophora Japonica Quercetin HPLC95% / UV98% 2             

Natural Plant Extract Sophora Japonica Quercetin HPLC95% / UV98% 3

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