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Methyl pamplemousse

6,6-Dimethoxy-2,5,5-trimethylhex-2-ene

Methyl pamplemousse

Acetal · Acetal · C₁₁H₂₂O₂

Chemical structure of Methyl pamplemousse
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
67674-46-8
Molecular formula
C₁₁H₂₂O₂
Molecular weight
186.29 g/mol
Origin
Synthetic
Odor family
Citrus
Note
Top
Aroma
Grapefruit and bitter rind, green; fresh and more stable than nootkatone.

History

Methyl pamplemousse (pamplemousse is French for grapefruit) is Givaudan's trade name for 6,6-dimethoxy-2,5,5-trimethylhex-2-ene.

In perfumery

Used for grapefruit notes in perfume and household products, often with nootkatone.

Connections

EvokesGrapefruit, Nootkatone

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 67674-46-8
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III