Plant Extracts

Molecular Formula: C15H14O9

Molecular Weight: 338.266

CAS No.: 6151-25-3

Product name:

Quercetin Dihydrate

Quercetin, as the most common flavonoid, has a variety of biological activities and antioxidant activities. It plays an important role in the clinical treatment of cancer and cardiovascular disease. Quercetin also has good expectorant and antitussive effects.

Description

It is a yellow powder. It is soluble in hot ethanol (1:23), cold ethanol (1:300), soluble in methanol, ethyl acetate, glacial acetic acid, pyridine, etc., insoluble in petroleum ether, benzene, ether, chloroform, almost insoluble in water.

Application

It is a kind of expectorant commonly used in traditional Chinese medicine. Quercetin has good expectorant and antitussive effect, also has certain antiasthma effect, and has the pharmacological function of reducing blood pressure, improving capillary resistance, reducing capillary fragility, reducing blood lipid, dilating coronary artery and increasing coronary artery blood flow. Clinical quercetin is mainly used in bronchitis and sputum inflammation. It also has auxiliary therapeutic effect on patients with coronary heart disease and hypertension.

Specification

Appearance

Yellow powder

Melting point

305℃~315℃

Reducing sugars

Not be detected

Sulfate

≤1000ppm

Chloride

≤1000ppm

Heavy metals

≤10ppm

Sulphated Ash

≤0.30%

Water

≤12.0%

Assay by HPLC

≥95.0%

Total plate count

≤1000cfu/g

Mildew & Yeast

≤100cfu/g

E.Coli

Negative

Salmonella

Negative

Coliforms

≤10cfu/g

Arsenic

≤1ppm

Mercury

≤0.1ppm

Cadmium

≤1ppm

Lead

≤3ppm

Packing

25kg/ drum or as customer requirements.

Storage

Store in a well-closed container. Away from moisture, light, oxygen.