Practically insoluble in water; soluble in aqueous alkaline solutions[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
Chemical compound
UV visible spectrum of quercetin, with lambda max at 369 nm
Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; capers, red onions, and kale are common foods containing appreciable amounts of it.[2][3] It has a bitter flavor and is used as an ingredient in dietary supplements, beverages, and foods.
^ abc"Quercetin dihydrate safety sheet". Archived from the original on September 16, 2011.
^"Flavonoids". Micronutrient Information Center, Linus Pauling Institute, Oregon State University, Corvallis, OR. November 2015. Retrieved 1 April 2018.
^Cite error: The named reference usda was invoked but never defined (see the help page).
Quercetin is a plant flavonol from the flavonoid group of polyphenols. It is found in many fruits, vegetables, leaves, seeds, and grains; capers, red...
Quercetin glucuronide or Quercetol glucuronide may refer to: Quercetin 3-O-glucuronide Quercetin 3'-O-glucuronide Flavonoid glucuronides are substrates...
anti-apoptotic protein Bcl-xL. Fisetin has roughly twice the senolytic potency as quercetin. A clinical trial in the U.S. was under way as of October 2018 to show...
inhibiting Src kinase, whereas quercetin inhibits the anti-apoptotic protein Bcl-xL. Administration of dasatinib along with quercetin to mice improved cardiovascular...
Miquelianin (quercetin 3-O-glucuronide) is a flavonol glucuronide, a type of phenolic compound present in wine, in species of St John's wort, like Hypericum...
the flavonol morin, morin-3-O-lyxoside, morin-3-O-arabinoside, quercetin and quercetin-3-O-arabinoside. Guava wood from Hawaii is commonly used for the...
of quercetin and its glucoside conjugates are pungent yellow or red onions, in which it is a minor pigment, quercetin-3,4'-diglucoside and quercetin-4'-glucoside...
antifungal properties.[citation needed] The cocrystals of kojic acid with quercetin were found to have two times better cytotoxic activity to human cervical...
Quercitrin is a glycoside formed from the flavonoid quercetin and the deoxy sugar rhamnose. Austrian chemist Heinrich Hlasiwetz (1825-1875) is remembered...
the time of year. They vary in nutritional content, but they do contain quercetin (a flavonol). Yellow onions are typically available throughout the year...
influence of mineral acids it yields quercetin, C15H10O7, which is precipitated, and the methyl-pentose rhamnose. Quercetin is a crystalline powder of a brilliant...
Hyperoside is a chemical compound. It is the 3-O-galactoside of quercetin. Hyperoside has been isolated from Drosera rotundifolia, from the Lamiaceae...
altitudes. The major UV blockers found in the bracts are all quercetin flavonoids: Rutin, quercetin 3-O-rutinoside: widespread in higher plants and previously...
which can often be fatal. Lupanone, lupeol, catechins, epicatechin, quercetin, and isorhamnetin are present in the leaf extract. Ultra-high performance...
4-Dihydroxyphenyl)-3,7-dihydroxy-5-methoxy-4H-chromen-4-one 5-O-Methylquercetin Quercetin 5-methyl ether Identifiers CAS Number 529-51-1 Y 3D model (JSmol) Interactive...
owl. The dried flower buds may contain as much as 20% rutin with some quercetin. S. japonicum dried fruit contains the flavonoid glycosides sophoricoside...
ubiquitously in plants". Flavonols, the original bioflavonoids such as quercetin, are also found ubiquitously, but in lesser quantities. The widespread...
5-Hydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7-dimethoxy-4H-1-benzopyran-4-one Other names Quercetin 3,7,3'-trimethyl ether Identifiers CAS Number 33708-72-4 Y 3D model (JSmol)...
anthraquinone physcion and the flavonoids kaempferol, rhamnocitrin, quercetin, and 3-O-methyl quercetin were isolated from its tissues. huikim (2 April 2015). "Rhamnus...
leaves can protect liver cells in high-fat or high-carbohydrate diets. Quercetin extracted from leaves is found a natural antioxidant, and can act as a...
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