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Spicy > Warm Spices > Cinnamic > Almondy > Balsamic

Alpha-humulene

3,7,10-humulatriene ; α-caryophyllène ; (1E,4E,8E)-2,6,6,9-tétraméthylcycloundéca-1,4,8-triène

Photo credits: ScenTree SAS

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General Presentation

CAS N° :
6753-98-6
EINECS number :
229-816-7
FEMA number :
Donnée indisponible.
FLAVIS number :
1.043

JECFA number :
Donnée indisponible.
Volatility :
Base
Price Range :
Data not available.

Physico chemical properties

Appearance :
Colorless to pale yellow liquid
Density :
0,889 - 0,907 @25°C
Refractive Index @20°C :
1,499 - 1,505 @20°C
Optical rotation :
Data not available.
Vapor pressure :
Data not available.
Flash Point :
Donnée indisponible.

Molecular formula :
C₁₅H₂₄
Molecular Weight :
204.35 g/mol
Log P :
6,6
Fusion Point :
Donnée indisponible.
Boiling Point :
166 - 168°C
Detection Threshold :
Donnée indisponible.

Chemistry & Uses

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.

Year of discovery :

First isolated from hops, hence the name

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.

Isomerism :

Also named alpha-caryophyllene, the alpha-humulene is an isomer of beta-caryophyllene

Synthesis precursor :

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.

Stability :

Very stable

Other comments :

Data not available.

Alpha-humulene

I buy this ingredient

General Presentation

CAS N° :

EINECS number :

FEMA number :

FLAVIS number :

JECFA number :

Volatility :

Price Range :

Physico chemical properties

Appearance :

Density :

Refractive Index @20°C :

Optical rotation :

Vapor pressure :

Flash Point :

Molecular formula :

Molecular Weight :

Log P :

Fusion Point :

Boiling Point :

Detection Threshold :

Chemistry & Uses

Uses in perfumery :

Year of discovery :

Natural availability :

Isomerism :

Synthesis precursor :

Synthesis route :

Stability :

Other comments :

Regulations & IFRA

Allergens :

IFRA 51^th :

Alpha-humulene

I buy this ingredient

I buy this ingredient

General Presentation

CAS N° :

EINECS number :

FEMA number :

FLAVIS number :

JECFA number :

Volatility :

Price Range :

Physico chemical properties

Appearance :

Density :

Refractive Index @20°C :

Optical rotation :

Vapor pressure :

Flash Point :

Molecular formula :

Molecular Weight :

Log P :

Fusion Point :

Boiling Point :

Detection Threshold :

Chemistry & Uses

Uses in perfumery :

Year of discovery :

Natural availability :

Isomerism :

Synthesis precursor :

Synthesis route :

Stability :

Other comments :

Regulations & IFRA

Allergens :

IFRA 51th :

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IFRA 51^th :