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Isoamyl acetate

3-Methylbutyl acetate

Isopentyl acetate, Banana oil

Ester · Ester · C₇H₁₄O₂

Chemical structure of Isoamyl acetate
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
123-92-2
Molecular formula
C₇H₁₄O₂
Molecular weight
130.19 g/mol
Origin
Nature-identical
Odor family
Fruity
Note
Top
Aroma
Ripe banana and pear drop candy with a light solvent note.

History

Isoamyl acetate is the familiar banana smell. It occurs in banana and is also a component of the honeybee sting alarm pheromone.

In perfumery

Widely used in flavours; in perfumery used sparingly for a fruity touch.

Connections

EvokesBanana
Found in natureBanana

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 123-92-2
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III