Sheerherb Hot Selling High Quality Natural Rainbow Sophora Flower Extract Quercetin 95%/98%

Sheerherb Hot Selling High Quality Natural Rainbow Sophora Flower Extract Quercetin 95%/98%

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•Product name: Quercetin dihydrate 95.0%hplc
•Also known as: Quercetin, taxifolin;(2r,3r)-3,3',4',5,7-pentahydroxyflavanone; (2r,3r)-Dihydroquercetin,dihydroquercetin, Apple extract, 3, 4, 5, 7-pentahydroxylflavone, dehydrated powder
•Molecular: C15H12O7
•Melting point: 305 ~ 315℃
•Product code: YG-PA012
•Botanical source: Sophorae Japonica
•Active ingredient: Quercetin dihydrate
•Certifications: ISO, HACCP, CQC, KOSHER, HALAL, GMP
•Specification:95.0% HPLC
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Product Details

We are committed to developing Extract Of cordyceps militaris, Griffonia seed extract hs code, Asparagus officinalis leaf extract hs code that are closer to the needs of consumers and provide consumers with better products. Our company adheres to the business philosophy and values in line with the market economy and establishes strict and standardized rules and regulations and control process. While our company is gaining a foothold in the domestic market, we have begun to move towards the international market. It is our basic job to produce high-quality goods that meet the needs of customers, and to bring tangible benefits to customers is the ultimate goal we pursue. Make the product quality excellent and stable, continuously improve customer satisfaction, is also a glory that we share with customers.

Product Instruction

◆ QuPure Quercetin Dihydrate Powder CAS 6151-25-3 is a flavonoid widely distributed in nature and usually exist in fruits, vegetables, leaves, grains and leafy greens, tomatoes, berries and broccoli. But the best Botanical Source is Sophora japonica L. 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. 

Chemical structure quercetin dihydrate

◆ 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. 

Pure quercetin dihydrate powder 98%

Sophora japonica L, is native to eastern China and Japan. Its beautiful white flowers make it a prized ornamental tree all over the world. It's also very beneficial to the circulatory system. Sophora japonica has a documented history of being used to promote optimal vein health and it's actually one of the fifty fundamental herbs in traditional Chinese medicine.

 Pure quercetin dihydrate powder  (3)

Specification of Quercetin dihydrate 95.0% HPLC









Yellow, crystalline powder







Mesh 80



Practically insoluble in water,   soluble in aqueous alkaline sol.



Melting point

305 ~ 315℃


Loss on drying

≤9.0% ~ 12.0%


Sulphated ash






Quercetin Dihydrate≥98.0%


Quercetin Dihydrate≥95.0%


Heavy Metals
















Total Plate Count

1000cfu/g Max



100cfu/g Max


E.Coli colonies/g

Negative (-)


Samonella colonies/g

Negative (-)


Pure Quercetin Dihydrate Powder CAS 6151-25-3 Benefits

◆ Dihydroquercetin is usually used as a raw material for high-grade foods. It is an extract of pine plant, larch pine, and golden plum tree. It is also a flavonoid plant compound with good whitening effect. Because it is a potent anti-oxidant drug, dihydroquercetin works well in skin whitening and firming effect.

◆ The medicinal action of dihydroquercetin is mainly reflected in the good antibacterial effect, and has strong antibacterial activity against Staphylococcus aureus, Escherichia coli and Salmonella typhi, and dihydroquercetin can also be used for anticancer. It is one of the vitamins that are effective in ensuring the healthy activities of human organs. It can improve the skin's own protective ability, and to some extent reduce the skin from internal and external radiation, viruses and other harmful substances. Effective protection.


Product Application

Quercetin has a good expectorant, cough, and some asthma, for the treatment of chronic bronchitis. lower blood pressure, increased capillary resistance, reduce capillary fragility, lowering blood pressure, expansion of coronary artery, increase coronary blood flow the role of adjuvant therapy for patients with coronary heart disease and high blood pressure.

◆ Applied in pharmaceutical field, it can be made into suppository, lotion, capsules, etc.

◆ Applied in health product field, it is mainly used in female health product.


Recommended dosage

◆ Dosages of Pure Quercetin Dihydrate Powder CAS 6151-25-3 used are in the range of 12.5 to 25mg per kg body weight, which translates to a range of 1,136-2,272mg daily consumption of quercetin when in isolation.

Our company focuses on the final customer demand, focusing on improving customer service level, increasing Sheerherb Hot Selling High Quality Natural Rainbow Sophora Flower Extract Quercetin 95%/98% diversity and reducing product prices. We believe that the internationalization of our research team gives us a great opportunity to develop the world's leading technology. We provide customers with excellent products, good technical support, and sound after-sales service. While we continue to improve product quality, we also regard customer service as the key to winning the market.
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