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gamma-Octalactone

5-butyloxolan-2-one

4-Octanolide

Lactone (gamma) · gamma-Lactone · C₈H₁₄O₂

Chemical structure of gamma-Octalactone
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
104-50-7
Molecular formula
C₈H₁₄O₂
Molecular weight
142.20 g/mol
Origin
Nature-identical
Odor family
Gourmand
Note
Heart
Aroma
Coconut and sweet herbs with a slight coumarin-like side.

History

gamma-octalactone is the eight-carbon lactone, found in many fruits and foods. It is lighter and more herbal than C-18.

In perfumery

Supports coconut and tonka accords; also used in flavours.

Connections

EvokesCoconut

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 104-50-7
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III