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QUERCETINE [3 records]

Record 1 2012-01-04

English

Subject field(s)
  • Chemical Elements and Compounds
  • Biochemistry
  • Dyes and Pigments (Industries)
  • Dietetics
Universal entry(ies)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
DEF

A yellow crystalline flavonol pigment that occurs usually in the form of glycosides (as quercitrin and rutin) in various plants and in the form of the dihydro derivative in Douglas fir, and that is used as an antioxidant, an absorber of ultraviolet rays, in rubber, plastics and vegetable oils.

CONT

Quercetin is a polyphenolic bioflavonoid or flavonoid, more specifically classified as a flavonol. ... Bioflavonoids are ... commonly found in plants that are used as medicinal herbs like Hypericum perforatum (St. Johns Wort) and Sambucus nigra L (Elder flower). Quercetin is highly abundant in food and beverage sources that are part of the human diet such as broccoli, lettuce, apples, tomatoes, onions, wine, tea, and coffee.

OBS

H-: The "H-" must be italicized.

OBS

yellow flavin: commercial name.

OBS

Chemical formula: C15H5O2 or C15H10O7

French

Domaine(s)
  • Éléments et composés chimiques
  • Biochimie
  • Teintures et pigments (Industries)
  • Diététique
Entrée(s) universelle(s)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
CONT

[La] quercétine [est un] flavonol [...] qui se rencontre sous forme d’hétéroside dans le houblon, le marronnier, le quercitron, le thé, etc., et qui est utilisé comme colorant jaune de la laine et de la soie.

CONT

La quercétine est un flavonoïde de type flavonol. [...] de nombreuses plantes médicinales doivent leur efficacité à leur fort taux en quercétine.

OBS

Ne pas confondre «quercétol» avec «quercitol».

OBS

H- : La lettre «H-» s’écrit en italique.

OBS

Formule chimique : C15H10O7 ou C15H5O2(OH)5

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Bioquímica
  • Tinturas y pigmentos (Industrias)
  • Dietética
Entrada(s) universal(es)
C15H5O2(OH)5
formula, see observation
C15H10O7
formula, see observation
117-39-5
CAS number
OBS

Fórmula química: C15H5O2 or C15H10O7

Save record 1

Record 2 2011-02-01

English

Subject field(s)
  • Chemical Elements and Compounds
  • Plant Biology
  • Dyes and Pigments (Industries)
Universal entry(ies)
C15H10O3
formula, see observation
577-85-5
CAS number
DEF

A colourless crystalline flavone derivative [of which] many of the derivatives ... are yellow plant pigments.

OBS

3-hydroxy-2-phenyl-4H-chromen-4-one: The capital letter "H" must be italicized; form recommended by the IUPAC (International Union of Pure and Applied Chemistry).

OBS

3-hydroxy-2-phenyl-4H-1-benzopyran-4-one: CAS name.

OBS

flavonol: This term is used as a synonym of the 3-hydroxyflavone compound, but also as a generic term used to refer to any of the derivatives of this compound, many of which are yellow plant pigments, and is, in this latter case, usually used in the plural.

OBS

Chemical formula: C15H10O3

French

Domaine(s)
  • Éléments et composés chimiques
  • Biologie végétale
  • Teintures et pigments (Industries)
Entrée(s) universelle(s)
C15H10O3
formula, see observation
577-85-5
CAS number
DEF

flavonol : Dénomination courante de l'hydroxy-3 flavone [...] dont dérivent de nombreux colorants importants, comme la fisétine, le kaempférol, la morine et la quercétine.

OBS

3-hydroxy-2-phényl-4H-chromén-4-one : La lettre majuscule «H» s’écrit en italique; forme recommandée par l’UICPA (Union internationale de chimie pure et appliquée).

OBS

flavonol : Ce terme est aussi utilisé, la plupart du temps au pluriel, comme générique pour désigner les dérivés de la 3-hydroxyflavone (voir aussi cette fiche).

OBS

Formule chimique : C15H10O3

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Biología vegetal
  • Tinturas y pigmentos (Industrias)
Entrada(s) universal(es)
C15H10O3
formula, see observation
577-85-5
CAS number
OBS

Fórmula química: C15H10O3

Save record 2

Record 3 2011-01-21

English

Subject field(s)
  • Dyes and Pigments (Industries)
  • Chemistry
  • Pharmacology
Universal entry(ies)
C21H20O11
formula, see observation
DEF

A bitter pale yellow crystalline glycoside ... obtained esp. from quercitron bark and yielding quercetrin and rhamnose on hydrolysis.

CONT

Quercitrin [is] used as a textile dye.

OBS

Quercitrin is known commercially as "red flavin".

OBS

Chemical formula : C21H20O11

French

Domaine(s)
  • Teintures et pigments (Industries)
  • Chimie
  • Pharmacologie
Entrée(s) universelle(s)
C21H20O11
formula, see observation
CONT

La quercitrine, glucoside constitué de la quercétine et du rhamnose [...] est une substance jaune cristalline très répandue dans le règne végétal. Elle a été isolée pour la première fois de Quercus tinctoria dont elle a pris le nom.

OBS

Formule chimique : C21H20O11

Spanish

Campo(s) temático(s)
  • Tinturas y pigmentos (Industrias)
  • Química
  • Farmacología
Entrada(s) universal(es)
C21H20O11
formula, see observation
OBS

Fórmula química: C21H20O11

Save record 3

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