Photo credits: ScenTree SAS
Alpha-Terpinene
1-methyl-4-propan-2-ylcyclohexa-1,3-diene ; 1-methyl-4-isopropyl-1,3-cyclohexadiene ; Para-mentha-1,3-diene ; 1,3-para-menthadiene ; 4-methyl-1-(1-methylethyl)-1,3-cyclohexadiene ; 1-methyl-4-(1-methyl ethyl)-1,3-cyclohexadiene ; 1-isopropyl-4-methyl-1,3-cyclohexadiene
Photo credits: ScenTree SAS
Do you sell any of the raw materials? Would you like to let our users know?
Send an email to fournisseurs@scentree.coto learn about our advertising opportunities.
Do you sell any of the raw materials? Would you like to let our users know?
Send an email to fournisseurs@scentree.coto learn about our advertising opportunities.
General Presentation
-
CAS N° :
99-86-5 -
EINECS number :
202-795-1 -
FEMA number :
3558 -
FLAVIS number :
01.019
-
JECFA number :
1339 -
Volatility :
Head -
Price Range :
€
Physico chemical properties
-
Appearance :
Colorless liquid -
Density :
0,837 -
Refractive Index @20°C :
Data not available. -
Optical rotation :
Data not available. -
Vapor pressure :
Data not available. -
Flash Point :
50°C
-
Molecular formula :
C10H16 -
Molecular Weight :
136,24 g/mol -
Log P :
Donnée indisponible. -
Fusion Point :
Donnée indisponible. -
Boiling Point :
174°C -
Detection Threshold :
Donnée indisponible.
Chemistry & Uses
Uses in perfumery :
Alpha-Terpinene is used in fruity and exotic notes, especially in mango for a spicy touch. Also used in woody and spicy notes, for freshness and a powerful top note.
Year of discovery :
Data not available.
Natural availability :
Alpha-Terpinene is found in many plant extracts, including Bergamot EO, Juniper Berry EO and Lime EO. It can be extracted from these plants essential oils.
Isomerism :
Alpha-Terpinene differs from beta-Terpinene, gamma-Terpinene and delta-Terpinene, its isomers. They all have a different smell. alpha-Terpinene is the most medicinal and most reminiscent of Lime EO. D-Limonene, Pinene, Myrcene and Ocimene are the constitutional isomers of Terpinene. They all belong to the terpene family, whose common point is that they can be synthesized by a Diels-Alder reaction, starting from Isoprene.
Synthesis precursor :
Alpha-Terpinene can be a precursor to the synthesis of other terpenes, for example by a Diels-Alder reaction.
Synthesis route :
Alpha-Terpinene is a terpene obtained by an isomerization of D-Limonene in an acidic medium.
Stability :
Terpenes tend to polymerize by oxydation.
Very unstable in alkaline functional bases as soap. In this base, its smell in not percievable.
Other comments :
In comparision to other terpenes, Alpha-Terpinene has a distinctive smell close to Lime EO.
Regulations & IFRA
Allergens :
This ingredient is classified as an allergen under European Regulation 2023/1545, dated August 26, 2023.
Its presence must therefore be declared on product labels when it exceeds 0.001% in leave-on products and 0.01% in rinse-off products.
IFRA 51th :
This ingredient is not restricted for the 51th amendment
