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86473

Sigma-Aldrich

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
Beilstein/REAXYS Number:
1853379
EC Number:
202-795-1
MDL number:
MFCD00001534
UNSPSC Code:
12352100
PubChem Substance ID:
57653161
NACRES:
NA.22

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

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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.

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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_germany

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
MKBV9509V
1437310V
1437310
1343937
1170454

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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)
Wei-bin Yuan et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(7), 1067-1069 (2011-11-10)
To analysis the constituents of volatile oil from Fructus Auranti Immaturus by GC-MS. The volatile oil was extracted by steam distillation, then separated by capillary gas chromatography. The constituents of volatile oil were identified and their amount were determined by
Nabila Bouderdara et al.
Natural product communications, 6(1), 115-117 (2011-03-04)
The essential oil of aerial parts of Cachrys libanotis L. (Apiaceae) from east Algeria was extracted by hydrodistillation and analyzed by GC-FID and GC-MS. Thirty-one compounds were identified, the main components being germacrene-D (18.0%), gamma-terpinene (6.4%), p-cymene (5.5%), caryophyllene oxide
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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GC Analysis of Spearmint Essential Oil on SLB®-IL59

-Cymene; Linalool; Menthol; α-Terpineol; Menthyl acetate

Protocols

GC Analysis of Peppermint Essential Oil on SUPELCOWAX® 10

-Cymene; (−)-Menthone; α-Terpineol, natural, ≥96%, FCC, FG; Terpinolene; β-Bourbonene; 1-Octen-3-ol; β-Caryophyllene; Linalool; α-Terpinene; (−)-Menthol

GC Analysis of Peppermint Essential Oil on SLB®-IL59

Cymene; 4,5,6,7-Tetrahydro-3,6-dimethylbenzofuran; Linalool; Menthol; Menthone; Menthyl acetate; Germacrene D; Bicyclogermacrene; Thymol

GC Analysis of Lemon Essential Oil on SLB®-IL59, 3 °C/min Oven Ramp

-α-Bergamotene; β-Bisabolene; α-Terpineol; Neryl acetate; Geranyl acetate; Neral; Geranial

GC Analysis of Lemon Essential Oil on SLB®-5ms (10 m x 0.10 mm I.D., 0.10 µM), Fast GC Analysis

-3,7-Dimethyl-2,6-octadien-1-ol; Neral; Geraniol; Geranial; Undecanal; Citronellyl acetate; Neryl acetate; 3,7-Dimethyl-2,6-octadienyl acetate; 1-Tetradecene; Tetradecane; α-Bisabolol

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