{{short description|Class of chemical compounds}} thumb|200px|Flavanonol, numbering The '''flavanonols''' (with two "o"s a.k.a. 3-hydroxyflavanone or 2,3-dihydroflavonol) are a class of flavonoids that use the 3-hydroxy-2,3-dihydro-2-phenylchromen-4-one (IUPAC name) backbone.

Some examples include: * Taxifolin (or Dihydroquercetin) * Aromadedrin (or Dihydrokaempferol) * Engeletin (or Dihydrokaempferol-3-rhamnoside)

==Metabolism== * Flavanone 3-dioxygenase * Flavonol synthase * Dihydroflavonol 4-reductase

== Glycosides == Glycosides (chrysandroside A and chrysandroside B) can be found in the roots of ''Gordonia chrysandra''.<ref>{{cite journal |author1=Kun Wanga |author2=Jing Zhi Yanga |author3=Li Zuoa |author4=Dong Ming Zhang |title=Two new flavanonol glycosides from ''Gordonia chrysandra'' |journal=Chinese Chemical Letters |volume=19 |issue=1 |pages=61–4 |date=January 2008 |doi=10.1016/j.cclet.2007.10.033 }}</ref> Xeractinol, a dihydroflavonol C-glucoside, can be isolated from the leaves of ''Paepalanthus argenteus var. argenteus''.<ref>{{cite journal |author1=Anne Lígia Dokkedal |author2=Francisco Lavarda |author3=Lourdes Campaner dos Santos |author4=Wagner Vilegas |title=Xeractinol – a new flavanonol C-glucoside from ''Paepalanthus argenteus'' var. ''argenteus'' (Bongard) Hensold (Eriocaulaceae) |journal=J. Braz. Chem. Soc. |volume=18 |issue=2 |pages= 437–439|date=March–April 2007 |doi=10.1590/S0103-50532007000200029 |url=http://www.scielo.br/scielo.php?pid=S0103-50532007000200029&script=sci_arttext|doi-access=free |hdl=11449/36324 |hdl-access=free }}</ref>

Dihydro-flavonol glycosides (astilbin, neoastilbin, isoastilbin, neoisoastilbin, (2''R'', 3''R'')-taxifolin-3'-''O''-β-D-pyranoglucoside) have been identified in the rhizome of ''Smilax glabra''.<ref>{{cite journal |vauthors=Yuan JZ, Dou DQ, Chen YJ |title=[Studies on dihydroflavonol glycosides from rhizome of Smilax glabra] |language=Chinese |journal=Zhongguo Zhong Yao Za Zhi |volume=29 |issue=9 |pages=867–70 |date=September 2004 |pmid=15575206 |display-authors=etal}}</ref>

<!-- ==See also== * -->

==References== {{reflist}}

{{Flavonoids}} {{Flavanonol}}

Category:Flavanonols

{{Aromatic-stub}}