Quercetin Antioxidant

Quercetin Antioxidant

● Application: Health-care Products
● Test Method: HPLC
● Appearance: Light Yellow Powder
● Latin Name: Sophora japonica Ait



high purityQuercetin, also known as Quercetin, Quercetin, soluble in glacial acetic acid, alkaline aqueous solution is yellow, almost insoluble in water, ethanol solution tastes bitter. It can be used as a medicine with good expectorant and cough relieving effects, and has a certain antiasthmatic effect. In addition, it can reduce blood pressure, enhance capillary resistance, reduce capillary fragility, reduce blood lipid, expand coronary artery, increase coronary blood flow and so on. For the treatment of chronic bronchitis. It is also an adjuvant therapy for patients with coronary heart disease and hypertension.


Quick Details

Application: Health-care Products

Test Method: HPLC

Appearance: Light Yellow Powder

Latin Name: Sophora japonica Ait.

Moq: 1kg

Product Name: quercetin powder

Active Ingredient: quercetin

Specification: quercetin 95%

  Supply Ability  

Supply Ability:

20 Ton/Tons per   Month

  Packaging & Delivery  

Packaging   Details







Lead Time

Quercetin Powder Bulk & Private Label Packaging for your options:

* 1~5 kg in a   Al-Foil Bag w/ Zip lock Bag inside

* 5~20 kg in a   Paper Carton

* 25kg in a   Paper Drum w/ Double Plastic Bags inside


3 days after   payment


Quercetin 95%


Dihydrate is yellow acicular crystal (dilute ethanol). It becomes anhydrous at 95-97 degree C and melting point 314 degree C (decomposition). Soluble in cold ethanol (1:290), soluble in hot ethanol (1:23), soluble in methanol, ethyl acetate, glacial acetic acid, pyridine, acetone, etc., insoluble in water, benzene, ether, chloroform, petroleum ether, etc., alkaline aqueous solution is yellow, almost insoluble in water, ethanol solution tastes bitter.

  Antioxidant activity  

Quercetin is a 5-hydroxyflavone with double bonds between 2 and 3 sites and 2 hydroxyl groups at 37 and 47 sites. Quercetin can be used as a free group acceptor in the process of metal chelation or oxidation of oils and fats. It can also be used as an antioxidant of oils and ascorbic acid.

  Our Services  

Any inquiries will be responsed within 24 hours.

Third party test and certifications.

Very short lead time:

    Immediate delivery for free sample.

    Immediate delivery for small order.

    One week lead time for big order.

Very competative price.

Techinical support.

Free Sample for your formula development

Wholesale packaging design services available.

1 year warranty.

  About us  

Shaanxi Huatai Bio-fine Chemical Co., Ltd is a professional manufacturer and supplier of natural plant extracts. Her owner has been specialized in this field since 1990s.



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