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Melonal

2,6-Dimethylhept-5-enal

Melonal

Unsaturated aliphatic aldehyde · C₉H₁₆O

Chemical structure of Melonal
2D structure PubChem / NCI CIR

Chemical info

CAS number CAS
106-72-9
Molecular formula
C₉H₁₆O
Molecular weight
140.22 g/mol
Origin
Synthetic
Odor family
Marine
Note
Top
Aroma
Honeydew melon and cucumber skin, green and watery; very diffusive.

History

Melonal is Givaudan's trade name for 2,6-dimethyl-5-heptenal. Together with Calone it underpins many melon and watery accords.

In perfumery

Used in small amounts in marine, melon and fresh floral fragrances.

Connections

EvokesMelon, Cucumber

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 106-72-9
  2. IFRA Standards Library, Amendments up to 51
  3. Regulation (EC) No 1223/2009, consolidated text of 18.05.2026, Annexes II and III