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86473

α-Terpinene

≥95.0% (GC)

Synonym(s):

alpha-Terpinene, 1-Isopropyl-4-methyl-1,3-cyclohexadiene, p-Mentha-1,3-diene

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About This Item

Empirical Formula (Hill Notation):
C10H16
CAS Number:
99-86-5
Molecular Weight:
136.23
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57653161
EC Number:
202-795-1
Beilstein/REAXYS Number:
1853379
MDL number:
MFCD00001534
Assay:
≥95.0% (GC)
Form:
liquid
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Quality Level

200

assay

≥95.0% (GC)

form

liquid

refractive index

n20/D 1.478 (lit.)

bp

173-175 °C (lit.)

density

0.837 g/mL at 25 °C (lit.)

storage temp.

−20°C

SMILES string

CC(C)C1=CC=C(C)CC1

InChI

1S/C10H16/c1-8(2)10-6-4-9(3)5-7-10/h4,6,8H,5,7H2,1-3H3

InChI key

YHQGMYUVUMAZJR-UHFFFAOYSA-N

General description

α-Terpinene, a cyclic monoterpene commonly used as a fragrance compound, is found in various essential oils. It is responsible for the antioxidant activity of tea tree oil.

Application

α-Terpinene can be used as an organic reductant in the guaiacol deoxygenation to yield phenols using V2O5/Al2O3 catalyst.

Disclaimer

Supply conditions do not apply to the regions and states of Brazil: North, Northeast, Mato Grosso do Sul, Mato Grosso, and Rio Grande do Sul.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Asp. Tox. 1 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Sens. 1B

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

122.0 °F - closed cup

flash_point_c

50 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
0000361196
0000361196
0000501532
0000501532
0000467136

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Conformational Space and Photochemistry of α-Terpinene
Marzec KM, et al.
The Journal of Physical Chemistry A, 114(17), 5526-5536 (2010)
Vanadium catalyzed guaiacol deoxygenation
Filley J and Roth C
J. Mol. Catal. A: Chem., 139(2-3), 245-252 (1999)
D Djenane et al.
Food science and technology international = Ciencia y tecnologia de los alimentos internacional, 17(6), 505-515 (2011-11-04)
Essential oils (EOs) extracted by hydrodistillation from leaf parts of Algerian Eucalyptus globulus, Myrtus communis and Satureja hortensis were analyzed by gas chromatography/mass spectrometry (GC/MS). The main components of EOs obtained were γ-terpinene (94.48%), 1,8-cineole (46.98%) and carvacrol (46.10%), respectively
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