ScenTree, la nouvelle encyclopédie des ingrédients de parfum.

Exploring the branches of scent

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Crédits photo: ScenTree SAS

CAS number :

104-61-0

EINECS number :

203-219-1

FEMA number :

2781

JECFA number :

229

FLAVIS number :

10.001

Volatility :

Heart

Appearance :

Colorless liquid

Price Range :

€€

Stability :

Lactones tend to polymerize through time, making them more viscous and leading to a phase shift in alcohol.

Density :

0.964

Molecular formula :

C₉H₁₆O₂

Molecular Weight :

156.22 g/mol

Flash Point :

258.8°F (126°C)

Log P :

2.5

Fusion Point :

Data not available.

Boiling Point :

469.4°F (243°C)

Detection Threshold :

7 ppb (0.0000007% !).

Crédits photo: ScenTree SAS

Year of discovery :

Data not available.

Synthesis route :

Gamma-Nonalactone is a cyclic lactone synthesized in the same way as other lactones. The reaction between acrylic acid and hexanol, in the presence of a sulfate or an alkaline phosphate, allows to synthesize this molecule. An intramolecular esterification of 4-hydroxynonanoic acid, catalysed by a strong acid such as concentrated sulfuric acid, also allows to obtain this compound. Finally, biochemical synthesis pathways are being studied by producing companies.

Synthesis precursor :

Gamma-Nonalactone is not a precursor to the synthesis of another compound of olfactory interest.

Isomerism :

Gamma-Nonalactone, like other lactones, has an asymmetric carbon. The smell of the two enantiomers of this molecule is similar. The racemic mixture is most often used in perfumery. Isoamyl Butyrate and Allyl Caproate are constitutional isomers of gamma-Nonalactone, but they have a very different butyric and cheesy smell.

Natural availability :

Gamma-Nonalactone is present in several foods and in the Eschweilera coriacea flower, from Central America. However, it is synthetic gamma-Nonalactone which is most often used in perfumery.

Allergens :

This ingredient does not contain any allergen.

For more information on allergens used in perfumery, please consult our article about allergens

IFRA :

This ingredient is not restricted

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

Skin contact products	Non skin contact products
Leave on products	Rinse off products

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration

Maximum usage according to the product category :
Ingredients containing
Ingredient Name	CAS N°	Estimated Concentration

List of natural ingredients containing the material presented here
Ingredient Name	Botanical Name	CAS N°	Estimated Concentration

To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library
To find out the specificities of each category and the ingredients prohibited by IFRA, click article about l'IFRA
ScenTree is solely responsible for the information provided here.

Uses in perfumery :

Gamma-Nonalactone contributes to an exotic, fruity-peach, milky and gourmet facet, in adequation with fruity notes in particular.

Other names :

Aldehyde C18, Coconut Aldehyde, 5-pentyloxolan-2-one, Prunolide, abricolin, gamma-amyl butyrolactone, 4-amyl-4-hydroxybutyric acid lactone, amylbutyrolactone, apricolin, coconut aldehyde, dihydro-5-pentyl-2(3H)-furanone, 4-nonalactone, 1,4-nonalolide, 1,4-nonanolide, gamma-nonanolide, gamma-nonyl lactone, gamma- pelargolactone, 4-pentyl butanolide, 5-pentyl-dihydro-furan-2-one, 5- pentyloxolan-2-one

Other comments :

Among the different lactones used in perfumery, Gamma-Nonalactone is an equilibrium between a coconut and a peach note. In that way, it is close to Nectaryl® and Lactone of cis-Jasmone.

Cat.1	Cat.2	Cat.3	Cat.4	Cat.5A	Cat.5B	Cat.5C	Cat.5D	Cat.6

Cat.7A	Cat.7B	Cat.8	Cat.9	Cat.10A	Cat.10B	Cat.11A	Cat.11B	Cat.12

Exploring the branches of scent

Year of discovery :

Data not available.

Synthesis route :

Synthesis precursor :

Gamma-Nonalactone is not a precursor to the synthesis of another compound of olfactory interest.

Isomerism :

Natural availability :

Gamma-Nonalactone is present in several foods and in the Eschweilera coriacea flower, from Central America. However, it is synthetic gamma-Nonalactone which is most often used in perfumery.

Allergens :

This ingredient does not contain any allergen.

Annexe I :

Restriction type :

Cause of restriction :

Amendment :

Comments :

Quantitative usage limits :

Annexe I :

Annexe I :

Restriction type :

Cause of restriction :

Amendment :

Comments :

Quantitative limit on the use :

Annexe I :