Quercetin

Quercetin
Skeletal formula of quercetin
Ball-and-stick model of the quercetin molecule
Names
Pronunciation /ˈkwɜːrsɪtɪn/
IUPAC name
3,3′,4′,5,7-Pentahydroxyflavone
Systematic IUPAC name
2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-4H-1-benzopyran-4-one
Other names
5,7,3′,4′-flavon-3-ol, Sophoretin, Meletin, Quercetine, Xanthaurine, Quercetol, Quercitin, Quertine, Flavin meletin
Identifiers
3D model (JSmol)
317313
ChEBI
ChEMBL
ChemSpider
DrugBank
ECHA InfoCard 100.003.807 Edit this at Wikidata
EC Number
  • 204-187-1
579210
KEGG
UNII
UN number 2811
  • InChI=1S/C15H10O7/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6/h1-5,16-19,21H checkY
    Key: REFJWTPEDVJJIY-UHFFFAOYSA-N checkY
  • InChI=1/C15H10O7/c16-7-4-10(19)12-11(5-7)22-15(14(21)13(12)20)6-1-2-8(17)9(18)3-6/h1-5,16-19,21H
    Key: REFJWTPEDVJJIY-UHFFFAOYAW
  • O=C1c3c(O/C(=C1/O)c2ccc(O)c(O)c2)cc(O)cc3O
Properties
C15H10O7
Molar mass 302.236 g/mol
Appearance yellow crystalline powder[1]
Density 1.799 g/cm3
Melting point 316 °C (601 °F; 589 K)
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).
☒N verify (what is checkY☒N ?)
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.

  1. ^ a b c "Quercetin dihydrate safety sheet". Archived from the original on September 16, 2011.
  2. ^ "Flavonoids". Micronutrient Information Center, Linus Pauling Institute, Oregon State University, Corvallis, OR. November 2015. Retrieved 1 April 2018.
  3. ^ Cite error: The named reference usda was invoked but never defined (see the help page).