Alpha-Terpinene
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Alpha-Terpinene

Alpha-Terpinene's cas code is 99-86-5

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Product Description

ALPHA-TERPINENE Basic information


Product Name:

ALPHA-TERPINENE

CAS:

99-86-5

MF:

C10H16

MW:

136.23404

EINECS:

202-795-1



ALPHA-TERPINENE Chemical Properties


Melting point 

-59.03°C (estimate)

Boiling point 

173-175 °C(lit.)

density 

0.837 g/mL at 25 °C(lit.)

FEMA 

3558 | P-MENTHA-1,3-DIENE

refractive index 

n20/D 1.478(lit.)

Fp 

115 °F

storage temp. 

−20°C

solubility 

95% ethanol: soluble1ml/2ml, clear, colorless

form 

Liquid

Specific Gravity

0.84

color 

Clear colorless to light yellow

Water Solubility 

Soluble in ether, alcohol, and ethanol (100 mg/ml). Insoluble in water.

Merck 

14,9170

JECFA Number

1339

BRN 

1853379

EPA Substance Registry System

1,3-Cyclohexadiene, 1-methyl-4-(1-methylethyl)- (99-86-5)


ALPHA-TERPINENE Safety Information


Hazard Codes 

Xn,N,Xi

Risk Statements 

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

Safety Statements 

26-36/37-61-62-36

RIDADR 

UN 2319 3/PG 3

WGK Germany 

2

RTECS 

OS8060000

10-23

TSCA 

Yes

HazardClass 

3.2

PackingGroup 

III

HS Code 

29021990


ALPHA-TERPINENE Usage And Synthesis


Chemical Properties

clear colorless to light yellow liquid

Chemical Properties

p-Mentha-1,3-diene has a woody, terpene, lemon odor with a lemony flavor, becoming bitter at high levels.

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).

Preparation

May be obtained by isolation from the terpene fraction of sweet orange oil or orange terpenes (8 to 10% of the total monoterpenes); by isolation from fractions of American turpentine oil; from 1-methyl-4-isopropylcyclohexadien-1,3-one-2; also from terpinene dihydrochloride with aniline.

Aroma threshold values

Aroma characteristics at 10%: citrusy, woody, terpy with camphoraceous and thymol notes; it has spicy and juicy citrus nuances.

Taste threshold values

Taste characteristics at 5 to 100 ppm: terpy, woody, piney, citrus lemon and lime with spice and mint nuances.

Safety Profile

Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.


ALPHA-TERPINENE Preparation Products And Raw materials


Raw materials

Turpentine oil-->TERPENE-->Orange sweet oil


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