High Natural Sophorae Japonica Extract 98% Quercetin

Our High Natural Sophorae Japonica Extract 98% Quercetin is a top-quality product from our factory. Discover the power of this natural ingredient for your health and wellness.
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Basic Info.

Model NO.
CAS No.: 117-39-5
Fine Yellow Crystalline Powder
Practically Insoluble in Water, Soluble in Aqueous
Odor & Taste
Botanical Source
Sophorae Japonica
Transport Package
HS Code
Production Capacity

Product Description


Plant Origin:  Sophorae Japonica
Part Used: Pagodatree flower bud, 100% Natural
Appearance: Fine Yellow Crystalline Powder
Specification: Quercetin 95% By HPLC; Quercetin 98% By UV
CAS No.: 117-39-5 
Molecular Formula: C15H10O7
Molecular Weight: 302.23
Melting Point: 314ºC

High Natural Sophorae Japonica Extract 98% Quercetin

What Is Quercetin?
Quercetin is a type of flavonoid antioxidant that's found in plant foods, including leafy greens, tomatoes, berries and broccoli. Quercetin is a phytochemical that is part of the coloring found in the skins of apples and red onions. It has been isolated and is sold as a dietary supplement.   
(1) It's technically considered a "plant pigment," which is exactly why it's found in deeply colored, nutrient-packed fruits and veggies.
Considered one of the most abundant antioxidants in the human diet, quercetin plays an important part in fighting free radical damage, the effects of aging and inflammation.
(2) While you can get plenty of quercetin from eating a healthy diet, some people also take quercetin supplements for their strong anti-inflammatory effects.
According to the Department of Pathology and Diagnostics at the University of Verona in Italy, quercetin and other flavonoids are "anti-viral, anti-microbial, anti-inflammatory and anti-allergic agents" with potential to be expressed positively in different cell types in both animals and humans. Research shows that quercetin may help to prevent cancer, especially prostate cancer.
(3) Flavonoid polyphenols are most beneficial for down-regulating or suppressing inflammatory pathways and functions. Quercetin is considered the most diffused and known nature-derived flavonol there is, showing strong effects on immunity and inflammation caused by leukocytes and other intracellular signals.

High Natural Sophorae Japonica Extract 98% Quercetin

One of the many health benefits of quercetin is that it acts as a potent antioxidant combating the destructive "free radical" molecules that play a part in many diseases.

Quercetin also has healthful anti-inflammatory and anti-allergy effects. It inhibits the production and release of histamine and other allergic/inflammatory mediators, making it of value for allergies, particularly allergies to pollen. It may also be helpful for hayfever, hives, sinusitis, asthma, and inflammation disorders.

Quercetin, along with other flavonoids, can also improve the health of capillaries. In addition, quercetin, along with other flavonoids, can improve the health of connective tissues. Therefore, the many health benefits of quercetin include alleviating bruising, edema, varicose veins, and fragile capillaries.

In test tube and animal studies quercetin has shown to have anti-cancer effects. In fact, flavonoids from fruits and vegetables have long been thought to be very important substances to possibly help prevent cancer.

One study suggests that quercetin is helpful for prostate health. More specifically, in a double-blind study quercetin was effective in non-bacterial chronic prostatitis (inflammation of the prostate gland).

Test tube, animal, and some population-based studies suggest that quercetin, resveratrol, and catechins -- all flavonoids -- reduce the risk of atherosclerosis. Atherosclerosis is a narrowing of the arteries from a buildup of fatty deposits called plaque that can lead to heart attack or stroke. However, studies in people are needed to confirm these findings.

Quercetin has also been shown to be a strong inhibitor of human lens aldose reductase - an enzyme that plays a part in the formation of diabetic cataract, neuropathy, and retinopathy.

Lastly, quercetin enhances the action of vitamin C, another antioxidant.
High Natural Sophorae Japonica Extract 98% Quercetin

High Natural Sophorae Japonica Extract 98% Quercetin

High Natural Sophorae Japonica Extract 98% Quercetin
High Natural Sophorae Japonica Extract 98% Quercetin

Why choose us?
1.High quality and competitive price.
2.Free sample for your evaluation.
3.Promptly delivery by well-reputed shipping line.
4.Trial order is available for testing after samples.
5.We will inform you all the information at every stage in advance
We can also customize orders as customer's requirements and specifications.
- KINGHERBS' is specialized in manufacturing and exporting different kinds of food industry related goods, such as Inulin (90% or 98%), Myricetin, Sea Buckthorn Oil, Green Coffee Bean Extract Total Chlorogenic Acids, Fenugreek Seed Extract Furostanol Saponins 50% etc.
- With the effective exporting system and prompt reaction, we ensure that we can transfer the shipping documents and deliver our cargos on time.
* Herbal extracts
* Softgels
* Herbal oil
* Natural colors
* Herb powders
* Vegetable & Fruit powder
* Vitamins
* Minerals
Small quantity:international express - DHL,.EMS
Big quantity:By air or by sea

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