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Sophora Japonica Extract Quercetin 98%
May 18, 2016

Product Name】:quercetin 

Another  Name】:MeletinSophretin 

Chemical Name: 4H-1-Benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-Flavone

The molecular formula】: C15H10O7

The molecular weight】:302.23

Physical and chemical propertiesYellow needle crystalquercetin is a kind of flavonoid compundsmore in the form of glycosidesthe acid hydrolysis can be quercetin


UVλmax258nm, 375nm(EtOH)


Quercetin existed in the flowers of many plants, leaves, fruits, exists more in the form of glycosides,such as rutin (rutin), quercitrin, hyperin plants content is higher.


This product has a good effect of expectorant, cough, and anti athmatic effect. Mouse oral LD50 was 160mg/kg.

[use one] antioxidant. Mainly used in oil, beverages, cold drinks, meat processing products.

[use two] a natural dye. Can be used as a medium dye. For wool and cotton, aluminum salt yellow, with chrome olive yellow, with tin salt iron salt was orange, olive green. Washing with soap is very good, fast medium.