槲皮素

Quercetin, also known as quercetin, quercetin, is soluble in glacial acetic acid, the alkaline aqueous solution is yellow, almost insoluble in water, and the ethanol solution is very bitter. It can be used as a medicine, has a good expectorant and antitussive effect, and has a certain antiasthmatic effect. In addition, it also lowers blood pressure, enhances capillary resistance, reduces capillary fragility, lowers blood fat, dilates coronary arteries, and increases coronary blood flow. For the treatment of chronic bronchitis. It also has an adjuvant treatment effect on patients with coronary heart disease and hypertension. 

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