Zebrago Industrial Co., Limited


    Quercetin is a type of plant-based chemical, or phytochemical, known as a flavonoid (see also Phytochemicals). Good sources include apples, onions, teas, red wines, and many other foods. Quercetin is also available as a dietary supplement. Quercetin appears to have anti-inflammatory and antioxidant properties. It has been promoted as being effective against a wide variety of diseases, including cancer. While some early lab results appear promising, as of yet there is no reliable clinical evidence that quercetin can prevent or treat cancer in humans.
product name quercetin powder
Appearance Yellow Green Powder
used part seed
variety quercetin extract powder
Specification 95%
CAS 117-39-5
Test Method HPLC
Certificate ISO9001/Halal/Kosher/GMP
shelf life 2 years
sample available

Quercetin Information:

Latin Name: Scphora japonica L.

Content: Quercetin

Specification: 95% 

Appearance: Yellow powder

Mesh size: 80 Mesh

Used Part: Flowers

Grade: Pharmaceuticals Ingredients

Brand Name: LS-Herb

CAS NO.:6151-25-3
Molecular formula:C15H10O7 
Molecular mass:302.23


Quercetin, also known as quercetin, quercetin dissolved in glacial acetic acid, alkaline aqueous solution was yellow, almost insoluble in water, ethanol solution taste bitter. 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 play the role of the increase in coronary blood flow. For the treatment of chronic bronchitis. Quercetin is usefull of adjuvant therapy in patients with coronary heart disease and hypertension

1.Quercetin Improving blood capillary elastic, Anti-inflammatory
2.Quercetin Antioxidation and anti-cancer, especially prostatic cancer 
3.Quercetin Preventing vascular disease
4. Quercetin Maintain vascular resistance

1. Quercetin Pharmaceutical industry: Some medicine with bromelain like throat tablet can diminish inflammation, facilitate digestion and improve immunological competence.So it can be applied in examination, treatment of gynecopathy, glaucoma and inset bitten.
2. Quercetin Food industry: It can be applied in hydrolyzing protein of plants and animals, so it can be used in the meat tenderizer,wine clarifier,stabilizer of noodle,health foods and soy sauce brewing etc. It can also improve the nutritional value.

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