Nootkatone
Naturelle - Synthétique
Fruity > Green Fruits > Grapefruit > Vetiver
Crédits photo: ScenTree SAS
Other names :
(4R,4aS,6R)-4,4a-dimethyl-6-prop-1-en-2-yl-3,4,5,6,7,8-hexahydronaphthalen-2-one ; 1(10),11-eremophiladien-2-one ; 4,4alpha,5,6,7,8-hexahydro-6-isopropenyl-4,4alpha-dimethyl-2,3H-naphthalenone ; (4R,4aS,6R)-6-iso propenyl-4,4a-dimethyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one
Volatility :
Heart
Uses in perfumery :
Nootkatone can be used for fresh, citrusy or woody notes. Essential for a grapefruit note and to acidify rhubarb. Boosts top notes.
Natural availability :
Nootkatone can be isolated in its natural state from Grapefruit EO, which contains about 1 to 2%. Nevertheless, the Nootkatone used in perfumery is generally obtained synthetically.
Year of discovery :
Data not available.
Other comments :
Nootkatone is the compound that gives Grapefruit EO its characteristic smell.
Price Range :
€€€€€
Stability :
Stable in perfumes and diverse functional bases
Crédits photo: ScenTree SAS
- Molecular formula :
- C15H22O
- Molecular Weight :
- 218,34 g/mol
- Density :
- 0,997
- Flash Point :
- 110°C
- Fusion Point :
- 32°C
- Appearance :
- White solid
- Log P :
- 3,8
- Boiling Point :
- 170°C (à 0,5 mmHg)
- Detection Threshold :
- Entre 170 et 800 ppb (0,00008%) selon les personnes
Synthesis route :
Nootkatone is synthesized by oxidation of a compound with a similar structure: Valencene, which can be isolated from Sweet Orange EO.
Synthesis precursor :
Nootkatone is not a precursor to the synthesis of another compound of olfactory interest.
Isomerism :
Nootkatone has three asymmetric carbons, one of which guides its enantiomer. Both enantiomers of the molecule have a similar smell. The racemic mixture is most often used, provided that the racemic mixture of Valencene is also used to synthesize it.
- EINECS number :
- 225-124-4
- FEMA number :
- 3166
- JECFA number :
- 1398
- FLAVIS number :
- 07.089
- Allergens :
- This ingredient does not contain any allergen.
- IFRA :
- This ingredient is restricted by IFRA
- Restriction type :
- SPECIFICATION
- Cause of restriction :
- DERMAL SENSITIZATION
- Amendment :
- 40
- Comments :
- Nootkatone used as a fragrance ingredient should be at least 98% pure, with a melting point of at least 32°C. Lower purity grades may not be used as a fragrance ingredient. Nootkatone is found in natural extracts, but its natural contributions are not relevant for the fragrance ingredient specification mentioned above.
- Restriction type :
- SPECIFICATIONS
- Cause of restriction :
- SENSITIZATION
- Amendment :
- Comments :
- Nootkatone used as a fragrance ingredient should be at least 98% pure, with a melting point of at least 32°C. Lower purity grades may not be used as a fragrance ingredient. Methods for the determination of purity of nootkatone are provided on the IFRA website www.ifraorg.org.
To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library
ScenTree is solely responsible for the information provided here.
