Shaanxi Yuwangtang Biology Technology Development Co.,Ltd
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Shaanxi Yuwangtang Biology Technology Development Co.,Ltd



Appearance: Yellowish crystal fine powder
Used Part: Flower/seed/leaf
Active Ingredients: Quercetin
Specification: Quercetin 95% 98%
Test Method: UV/HPLC

Product Details:

General Information

Product Name:


Other Name:

Meletin, Sophretin 

Extract Source:

Dysosma veitchii(Hemsl. et Wils.) Fu,

Hypericum ascyron L., Apocynum lancifolium Rus

Used Part:


Active Ingredients:


Our Specification:

Quercetin 95%  98%  UV/HPLC


Yellowish crystal fine powder

Packaging Detail:

1-5kg/foil bag, or 15-25kg/Drum


Store in a well-closed container away from moisture.

Shelf Life:

2 years if sealed and store away from direct sun light.


By Sea & Air Shipping & International Express

Lead Time:

Within 3 days after receive payment.


Our advantage of Quercetin 

1. We believes that good raw material to produce high quality product, our raw material of Quercetincomes from Sichuan, Shaanxi, etc, China, a reliable、low-cost、high-quality Quercetinextract supplier.

2. We uses ethanol & purified water as the extraction solvent of Quercetin extract, 100% Quality Control for production process, our Quercetinextract are in line with almost all the national consumption of health products and medicines quality specifications.

3. 100% Natural product, without anyadditive and synthesizeingredien.

4. Free sample(10-20g or enough to detection) and Unconditional assume response.


Quercetin, also known as Meletin , Sophretin ,whichis a type of flavonoid (plant pigment) that serves as a building block for other members of the flavonoid family.

Quercetin and other dietary flavonoids have been receiving good health-related press in recent years, and for good reason.

Quercetin can be used as drugs, has a good expectorant, cough effect, and some asthma. Quercetin also used for lowering blood pressure, increasing capillary resistance, reducing capillary fragility, expansion of coronary artery, Quercetin is playing an important role in plant extract.


1. Quercetin can anti-asthmatic;

2. Quercetin can expel phlegm and arrest coughing;

3. Quercetin cananti-cancer activity, inhibits PI3-kinase activity;

4. Quercetin caninhibit histamine release from basophils and mast cell;

5. Quercetin cancontrol the spread of certain viruses within the body;

6. Quercetin can benefit dysentery, gout, and psoriasis;

7. Quercetin can treat chronic bronchitis, high blood pressure.


1. Quercetin applied in health care field;

2. Quercetin applied in food and beverage additives;

3. Quercetin applied in pharmaceutical field;

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