Quercetin

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1.What is the Quercetin ?

Yellow to green yellow crystalline powde

The name of quercetin has been used since 1857, which is derived from quercetum (oak forest) after Quercus. Quercetin is widely found in flowers, leaves, and fruits of various plants. Vegetables (such as onions, ginger, celery, etc.), fruits (such as apples, strawberries, etc.), beverages (such as tea, coffee, red wine, fruit juice, etc.), and more than 100 kinds of Chinese herbal medicines (such as Threevein Aster, mountain white chrysanthemum, Huai rice, Apocynum, Ginkgo biloba, etc.) contain this ingredient. Threevein Aster is a Chinese herbal medicine and used in Jiangxi province, China, for more than 30 years. Its plant name is three veins Mala, Compositae. It is rich in drug sources, which can be found in Southern provinces of China. Clinical practice proved that it has significant anti-inflammatory and expectorant effects, and it is a good prescription for the treatment of elderly chronic bronchitis.

2.What is the CAS number for Quercetin ?

The CAS number of Quercetin is 117-39-5.

3.What are another words for Quercetin ?

Synonyms for Quercetin 117-39-5:4H-1-benzopyran-4-one, 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;Quercetin content;Cyanidelonon 1522;3,5,7-Trihydroxy-2-(3,4-dihydroxyphenyl)-4H-chromen-4-on;3,5,7,3,4-Pentahydroxyflavone;Quercetine;Quercetol;3,3',4',5,7-pentahydroxyflavone;Quercetin 99%;Sophoretin;C.I. natural yellow 10 & 13;C.I. Natural Yellow 10;Quertin;C.I. 75670;Quertine;t-Gelb bzw. grun 1;3,4,5,7-Tetrahydroxyflavan-3-ol;4H-1-Benzopyran-4-one, 2- (3,4-dihydroxyphenyl)-3,5,7-trihydroxy-;Xanthaurine;3,5,7,3, 4-Pentahydroxyflavone;Flavin meletin;Flavone, 3,3,4,5,7-pentahydroxy-;2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one;Flavone, 3,4,5,5,7-pentahydroxy-;3,3,4,5,7-Pentahydroxyflavone;2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-chromen-4-one;

4.What is Quercetin (117-39-5) used for?

Quercetin has been used as an antioxidant which reversed the immunosuppressive effects of high glucose and hyperglycemic sera in type 2 diabetic patients.It has been used as a detoxifying phytochemical in Apis mellifera.It has been used as a positive control in DPPH (2,2- diphenyl-1-picryhydrazyl) radical scavenging assay. It has also been used for the preparation of calibration curve to determine total flavonoid content.

It is mainly used for the treatment of chronic bronchitis.

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