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α-Terpinene

α-Terpinene structure

CAS No:
99-86-5
Formula:
C10H16
Chemical Name:
α-Terpinene
Synonyms:
1,3-Cyclohexadiene,1-methyl-4-(1-methylethyl)-;p-Mentha-1,3-diene;1-Methyl-4-(1-methylethyl)-1,3-cyclohexadiene;Terpilene;α-Terpinene;α-Terpinen;4-Isopropyl-1-methyl-1,3-cyclohexadiene;1-Methyl-4-isopropyl-1,3-cyclohexadiene;1-Isopropyl-4-methyl-1,3-cyclohexadiene;alpha-Terpinene;1-Methyl-4-propan-2-ylcyclohexa-1,3-diene
Categories:
Cosmetic Ingredient > Perfuming

Description

clear colorless to light yellow liquid p-Mentha-1,3-diene has a woody, terpene, lemon odor with a lemony flavor, becoming bitter at high levels.

Liquid|Solid|Colourless oily liquid; refreshing, lemony-citrus aroma

Alpha-terpinene is one of three isomeric monoterpenes differing in the positions of their two double bonds (beta- and gamma-terpinene being the others). In alpha-terpinene the double bonds are at the 1- and 3-positions of the p-menthane skeleton. It has a role as a volatile oil component and a plant metabolite. It is a monoterpene and a cyclohexadiene.

α-Terpinene Basic Attributes

Molecular Weight：

136.23

Exact Mass：

136.23

EC Number：

202-795-1

UNII：

I24X278AP1

DSSTox ID：

DTXSID9041237

HScode：

2902199090

Characteristics

PSA：

XLogP3：

2.8

Appearance：

Clear colorless to light yellow Liquid

Density：

0.8529 g/cm³ @ Temp: 23 °C

Melting Point：

<25 °C

Boiling Point：

175 °C

Flash Point：

115 °F

Refractive Index：

1.476

Water Solubility：

soluble in ether, alcohol, and ethanol (100 mg/ml). Insoluble in water.95% ethanol: soluble 1ml/2ml, clear, colorless

Storage Conditions：

−20°C

OH：

3.63e-10 cm3/molecule*sec

Safety Information

Packing level：

Ⅲ

Hazard category：

3.2

Transport codes：

UN 2319 3/PG 3

wgk germany：

hazard class code：

10-22-36/37/38-51/53

safety instructions：

26-36/37-61-62-36

RTECS Number：

OS8060000

Marks：

Xn,N,Xi

Precautionary statement(s)：

P210-P261-P273-P280-P301 + P312 + P330-P304 + P340 + P312-P305 + P351 + P338-P337 + P313-P403 + P235

Hazard Statements：

H226-H302-H315-H319-H335-H411-H413

GHS Classification：

|Danger|H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]|P210, P233, P240, P241, P242, P243, P264, P270, P273, P280, P301+P310, P301+P312, P303+P361+P353, P330, P331, P370+P378, P391, P403+P235, P405, and P501|Aggregated GHS information provided by 1930 companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Drug Information

MeSH Entry Terms：

1,4-p-menthadiene

α-Terpinene Use and Manufacturing

Methods of Manufacturing

It is derived from the terpene component of sweet orange oil. Separated from the turpentine fraction.

Uses

α-Terpinene is suitable for use in a study to evaluate the antimycotic properties of Melaleuca alternifolia essential oil (tea tree oil, TTO). 1 It is suitable for use to investigate the in vitro antibacterial activity of the essential oils extracted from the fruits of Coriandrum sativum L. and Foeniculum vulgare Miller var. vulgare (Miller).

Production

100,000 - 500,000 lb

Manufacturing Info：

1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-: ACTIVE

Use Classification：

Food additives -> Flavoring Agents|Flavoring Agents -> JECFA Flavorings Index|Lipids -> Prenol Lipids [PR] -> Isoprenoids [PR01] -> C10 isoprenoids (monoterpenes) [PR0102]

Food Additive Classes：

Flavoring Agents

Computed Properties

Molecular Weight:136.23
XLogP3:2.8
Rotatable Bond Count:1
Exact Mass:136.125200510
Monoisotopic Mass:136.125200510
Heavy Atom Count:10
Complexity:171
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Terpinolene

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Guide of α-Terpinene

Description
Basic Attributes
Characteristics
Safety Information
Drug Information
Use and Manufacturing
Computed Properties
Material
Recommended Suppliers
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α-Terpinene

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