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Dihydro-beta-ionone

4-(2,6,6-trimethyl-1-cyclohexenyl)butan-2-one

Ketone ionone · Ionone ketone · C₁₃H₂₂O

Chemical structure of Dihydro-beta-ionone
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
17283-81-7
Molecular formula
C₁₃H₂₂O
Molecular weight
194.32 g/mol
Origin
Nature-identical
Odor family
Floral
Note
Heart
Aroma
Woody and violet with fruity and ambery nuances; drier than beta-ionone.

History

Dihydro-beta-ionone occurs in osmanthus absolute and contributes to the flower's character.

In perfumery

Used in osmanthus, violet, woody and amber accords.

Connections

EvokesOsmanthus, Violet
Found in natureOsmanthus

Regulatory status

No specific limit
IFRA 51
No dedicated IFRA Standard in the IFRA library as of Amendment 51.
EU CosReg
No specific entry in Annex II or III of Regulation (EC) 1223/2009.
EU allergen 2023/1545
Not on the list of fragrance allergens requiring labelling, including after Regulation (EU) 2023/1545.

Sources

  1. NCI/CADD Chemical Identifier Resolver, CAS 17283-81-7
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III