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Hedione (methyl dihydrojasmonate)

Methyl 2-(3-oxo-2-pentylcyclopentyl)acetate

Hedione, Hedione HC, Kharismal, Cepionate, Methyl dihydrojasmonate, MDJ

Cyclopentanone ester · C₁₃H₂₂O₃

Chemical structure of Hedione (methyl dihydrojasmonate)
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
24851-98-7
Molecular formula
C₁₃H₂₂O₃
Molecular weight
226.31 g/mol
Introduced
1962 (described) · Firmenich (Edouard Demole)
Origin
Synthetic
Odor family
Floral
Note
Heart
Aroma
Transparent jasmine with a light citrus side; airy, giving a sense of space and radiance.

History

Methyl dihydrojasmonate was characterised and synthesised by Edouard Demole at Firmenich between the late 1950s and 1962, during work on the methyl jasmonate of jasmine. Hedione is Firmenich's trade name.

Christian Dior's Eau Sauvage (1966, Edmond Roudnitska) is usually cited as the first commercial perfume to use Hedione at a significant level. Hedione HC is the cis-enriched grade and is markedly stronger.

In perfumery

One of the most used materials in modern perfumery, sometimes a large share of a formula. It lightens and widens floral, citrus and woody accords.

Connections

EvokesJasmine
Found in natureMethyl jasmonate (natural relative)

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 24851-98-7
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III
  4. Demole E., Lederer E., Mercier D. (1962) Helvetica Chimica Acta 45 (methyl jasmonate from jasmine)
  5. Zeon Corporation: CEPIONATE (methyl epi-dihydrojasmonate)