|
Product Name: |
ALPHA-TERPINENE |
|
CAS: |
99-86-5 |
|
MF: |
C10H16 |
|
MW: |
136.23404 |
|
EINECS: |
202-795-1 |
|
|
|
|
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) |
|
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 |
|
F |
10-23 |
|
TSCA |
Yes |
|
HazardClass |
3.2 |
|
PackingGroup |
III |
|
HS Code |
29021990 |
|
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. |
|
Raw materials |
Turpentine oil-->TERPENE-->Orange sweet oil |
