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Pronunciation varies by accent · noun
(organic chemistry) Any of several ketones, or a mixture of such, found in orris oil (oil extracted from iris roots), used as odorants in perfumes..
1951 [D. Van Nostrand], Frank C. Whitmore, Organic Chemistry, Volume One: Part I: Aliphatic Compounds, Part II: Alicyclic Compounds, 2nd Edition, 2012, Dover republication, page 565, The previously accepted cycloheptene structure for the irones has been shown recently to be wrong.
As is well known, Irone is the principal odoriferous constituent of Orris Butter, the essential oil obtained from Orris Root by steam distillation.
The constituents of Orris (Iris) oil that we shall be concerning ourselves with in this chapter are the irones (22-24). Orris oil comes from the steam distillation of the rhizomes of Iris pallida (which contains the major irone components; (-)-trans-α-irone, (+)-cis-γ-irone, (+)-cis-α-irone, (+)-β-irone, and (+)-trans-γ-irone) or Iris germanica. Both species of iris contain the same irones except that the irones in Iris germanica are the optical antipodes of those found in Iris pallida [27].
Use irone when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Irone means (organic chemistry) Any of several ketones, or a mixture of such, found in orris oil (oil extracted from iris roots), used as odorants in perfumes..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
1951 [D. Van Nostrand], Frank C. Whitmore, Organic Chemistry, Volume One: Part I: Aliphatic Compounds, Part II: Alicyclic Compounds, 2nd Edition, 2012, Dover republication, page 565, The previously accepted cycloheptene structure for the irones has been shown recently to be wrong.
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