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CasNo: 117-39-5
MF: C15H10O7
Appearance: Yellow to green yellow crystalline powde
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It is mainly used for the treatment of chronic bronchitis.
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.
(2R,3S,4R)-(+)-3,4,5,7,3',4'-hexahydroxyflavan
cyanidin
quercetol
2R,4R-flavan-3,3,4-triol
(-)-epitaxifolin
taxifolin
Conditions | Yield |
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With anthocyanidin synthase from Vitis vinifera; water; In aq. acetate buffer; at 35 ℃; for 0.5h; pH=6.3; Mechanism; Enzymatic reaction;
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rutin
β-D-glucose
L-rhamnose
quercetol
Conditions | Yield |
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With Novosphingobium sp. PP1Y protein extract; In aq. phosphate buffer; at 35 ℃; for 24h; pH=7; Enzymatic reaction;
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The CAS number of Quercetin is 117-39-5.
More information of Quercetin 117-39-5 are:
CAS Number |
117-39-5 |
Density |
1.799 g/cm3 |
Melting Point |
314-317 ºC |
Boiling Point |
642.4 ºC at 760 mmHg |
Flash Point |
248.1 ºC |
Refractive Index |
1.4790 (estimate) |
HS CODE |
29329990 |
PSA |
131.36000 |
LogP |
1.98800 |
Pka |
6.31±0.40(Predicted) |
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;
The chemical formula of Quercetin is C15H10O7 which containing 15 Carbon atoms,10 Hydrogen atoms and 7 Oxygen atoms,and the molecular weight of Quercetin is 302.24.
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.
Relevant articles related to Quercetin:
Article |
Source |
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Pakudina,Sadykov , (1967) |
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Zapesochnaya et al. , (1969) |
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