Photo credits: ScenTree SAS
Terpinen-4-ol
Herbal > Camphoric > Coniferous > Earthy > Rosy
4-carvomenthenol ; 4-methyl-1-(1-methylethyl)-3-cyclohexen-1-ol ; Para-menth-1-en-4-ol ; 1-para-menthen-4-ol ; Origanol ; 1-isopropyl-4-methyl-3-cyclohexen-1-ol ; Terpinenol
Photo credits: ScenTree SAS
General Presentation
-
CAS N° :
562-74-3 -
EINECS number :
209-235-5 -
FEMA number :
2248 -
FLAVIS number :
2,072
-
JECFA number :
439 -
Volatility :
Head -
Price Range :
€
Physico-chemical properties
-
Appearance :
Colorless liquid -
Density :
0,931 -
Refractive Index @20°C :
Donnée indisponible. -
Optical rotation :
Donnée indisponible. -
Vapor pressure :
Donnée indisponible. -
Flash Point :
79°C (174,2°F)
-
Molecular formula :
C10H18O -
Molecular Weight :
154,25 g/mol -
Log P :
Donnée indisponible. -
Fusion Point :
Donnée indisponible. -
Boiling Point :
89°C (192,2°F) -
Detection Threshold :
Donnée indisponible.
Chemistry & Uses
Uses in perfumery :
Terpinen-4-ol is used for aromatic accords, around pine, pepper and geranium, especially in detergents and functional perfumes. It brings an earthy effect.
Year of discovery :
Data not available.
Natural availability :
Terpinen-4-ol is present in many essential oils, especially aromatic ones. It is found in a large quantity in Marjoram EO and in Tea Tree EO. It is present in moderate quantities in Lavender EO, Nutmeg EO and Blackcurrant Bud Absolute.
| Ingredient | % min | % max |
|---|---|---|
| Juniper berry oil | 1 | 6 |
| Cassis bud absolute | 5 | |
| Cedar leaf oil | 2 | 3 |
| Cypress oil (Spain) | 0.50 | 2 |
| Cypress oil (France) | 0.20 | 2 |
| Lavender oil | 4 | |
| Lavandin abrialis oil | 0.30 | 1.20 |
| Lavandin super oil | 1 | |
| Mastic absolute | ||
| Pink lotus absolute | ||
| Sweet marjoram oil | 14 | 22 |
| Nutmeg oil | 2 | 6 |
| Origanum oil | 0.50 | 2 |
| Ravintsara oil | 1.70 | 3.50 |
| Tanacetum vulgare | 3 | |
| Ledum groenlandicum oil | ||
| Sichuan pepper absolute | 1 | 5 |
| Cardamom PURE JUNGLE ESSENCE™ | 0.10 | 1 |
| Douglas Fir oil | 5 | 10 |
| Zygis thyme oil | 0.10 | 2.50 |
| Spanish marjoram oil | 0.20 | 1.20 |
| Spanish sage oil | 2 |
Isomerism :
Terpinen-4-ol used in perfumery, and often found in nature, is a racemic mixture of its two enantiomers, dextrorotatory and levorotatory. Both have an equivalent odor, which explains the use of the mixture of the two isomers. Terpinen-4-ol is also a positional isomer of Alpha-Terpineol, which has a more floral and less earthy odor.
Synthesis precursor :
Terpinen-4-ol can be used for the synthesis of Alpha-Terpineol. The goal of this synthesis is to shift the alcohol function of the initial molecule to its neighbouring carbon. However, this synthesis is not very common.
Synthesis route :
Terpinen-4-ol is often synthesized at a low cost as a by-product in the synthesis of Alpha-Terpineol from Terpine hydrate. The resulting molecule is not completely pure. Nevertheless, it is possible to synthesize pure Terpinen-4-ol from Terpinolene by photosensitized oxidation, followed by reduction of the intermediary peroxide, and selective hydrogenation of the intermediate alcohol formed.
Stability :
Terpenes tend to polymerize under the effect of high oxydation, and are unstable in alkaline and acidic bases.
Other comments :
Terpinen-4-ol is a monoterpene. This means, as for D-Limonene, that this molecule is composed of two isoprene units, and therefor ten carbon atoms. This category of terpenes includes many isomer.
Labelling
Allergens :
This ingredient does not contain any allergen.
Signal word :
Warning
Hazard pictograms :
Precautionary statements :
| HAZARD | PRECAUTION |
|---|---|
| H302 Harmful if swallowed.
H315 Causes skin irritation. H317 May cause an allergic skin reaction. H319 Causes serious eye irritation. H332 Harmful if inhaled. H336 May cause drowsiness or dizziness. |
IFRA
IFRA 51th :
This ingredient is not restricted for the 51th amendment
