Quercitrin
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| Names | |
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| IUPAC name
3′,4′,5,7-Tetrahydroxy-3-(α-L-rhamnopyranosyloxy)flavone
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| Systematic IUPAC name
2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-3-{[(2S,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxy}-4H-1-benzopyran-4-one | |
| Other names
Quercetin 3-O-a-L-rhamnoside
Thujin Quercetin 3-rhamnoside Quercetin-3-rhamnoside Quercetin-3-L-rhamnoside | |
| Identifiers | |
3D model (JSmol)
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| E number | Lua error in Module:Wikidata at line 880: attempt to index field 'wikibase' (a nil value). |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Properties | |
| C21H20O11 | |
| Molar mass | 448.38 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Quercitrin is a glycoside formed from the flavonoid quercetin and the deoxy sugar rhamnose.
Austrian chemist Heinrich Hlasiwetz (1825-1875) is remembered for his chemical analysis of quercitrin.
It has also been investigated as a potential dietary supplement.[1]
Occurrence
[edit | edit source]Quercitrin is a constituent of the dye quercitron. It can be found in Tartary buckwheat (Fagopyrum tataricum)[2] and in oaks species like the North American white oak (Quercus alba) and English oak (Quercus robur).[3] It is also found in Nymphaea odorata or Taxillus kaempferi.[4]
Metabolism
[edit | edit source]The enzyme quercitrinase catalyzes the chemical reaction between quercitrin and H2O to yield L-rhamnose and quercetin.
References
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- ^ Tartary Buckwheat (Fagopyrum tataricum Gaertn.) as a Source of Dietary Rutin and Quercitrin. Nina Fabjan, Janko Rode, Iztok Jože Košir, Zhuanhua Wang, Zheng Zhang and Ivan Kreft, J. Agric. Food Chem., 2003, 51 (22), pp. 6452–6455, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Analysis of oak tannins by liquid chromatography-electrospray ionisation mass spectrometry. Pirjo Mämmelä, Heikki Savolainen, Lasse Lindroos, Juhani Kangas and Terttu Vartiainen, Journal of Chromatography A, Volume 891, Issue 1, 1 September 2000, Pages 75-83, Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ The constituents of Taxillus kaempferi and the host, Pinus thunbergii. I. Catechins and flavones of Taxillus kaempferi. Konishi T, Nishio T, Kiyosawa S, Fujiwara Y and Konoshima T, Yakugaku Zasshi., February 1996, volume 116, issue 2, pages 148-157 (article in Japanese), Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
