{{Short description|Chemical compound}} {{multiple image | direction = vertical | image1 = (-)-cis-γ-irone.svg | image2 = (-)-cis-α-irone.svg | caption2 = Chemical structures of (−)-''cis''-γ-irone (top) and (−)-''cis''-α-irone }} '''Irones''' are a group of methylionone odorants used in perfumery, derived from iris oil,<ref>Council of Europe, August 2007 {{Google books|e8OwTIHMJDAC|Natural Sources of Flavourings, Volume 2|page=103}}</ref> e.g. orris root. The most commercially important of these are:
* (−)-''cis''-γ-irone, and * (−)-''cis''-α-irone
Irones form through slow oxidation of triterpenoids in dried rhizomes of the iris species, ''Iris pallida''. Irones typically have a sweet floral, iris, woody, ionone, odor.
==See also== * Ionone
==References== {{reflist}}
==External links== {{commons category|Irones}} * [http://www.chm.bris.ac.uk/motm/irone/smell.htm Structure - Odor Relationships]
Category:Perfume ingredients Category:Ketones Category:Cyclohexanes Category:Cyclohexenes