Alpha-humulene
Synthetic
Spicy > Warm Spices > Cinnamic > Almondy > Balsamic
Crédits photo: ScenTree SAS
Other names :
3,7,10-humulatriene ; α-caryophyllène ; (1E,4E,8E)-2,6,6,9-tétraméthylcycloundéca-1,4,8-triène
Volatility :
Base
Uses in perfumery :
Rarely used as such. Humulene-alpha is however very present in our formulas because it is a component of a large number of essential oils. It is therefore very commun to find it in the results of chromatographic analysis.
Natural availability :
This molecule is found in a countless number of essential oils, usually in trace amounts. Among the essential oils concerned, we find the great majority of spices, herbs, woods and citrus.
Year of discovery :
First isolated from hops, hence the name
Other comments :
Data not available.
Price Range :
Data not available.
Stability :
Very stable
Crédits photo: ScenTree SAS
- Molecular formula :
- C15H24
- Molecular Weight :
- 204.35 g/mol
- Density :
- 0.889 - 0.907 @25°C
- Flash Point :
- Data not available.
- Fusion Point :
- Data not available.
- Appearance :
- Colorless to yellow liquid
- Log P :
- 6.6
- Boiling Point :
- 330 °F (166 - 168 °C)
- Detection Threshold :
- Data not available.
Synthesis route :
Alpha-humulene is a sesquiterpene. This means that it has three units of Isoprenes. Isoprene is a five carbon atoms diene, constituting a basis for the synthesis of terpenes by Diels-Alder reactions. Thus, humulene can be synthesized from isoprene, or other easily obtainable terpenes, to shorten the synthesis.
Synthesis precursor :
Data not available.
Isomerism :
Also named alpha-caryophyllene, the alpha-humulene is an isomer of beta-caryophyllene
- EINECS number :
- 229-816-7
- FEMA number :
- Data not available.
- JECFA number :
- Data not available.
- FLAVIS number :
- 1.043
- Allergens :
- This ingredient does not contain any allergen.
- IFRA :
- This ingredient is not restricted
To learn more about IFRA's standards : https://ifrafragrance.org/safe-use/library
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