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Sigma-Aldrich

α-Terpinene

85%

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:
1853379
EC Number:
202-795-1
MDL number:
MFCD00001534
UNSPSC Code:
12352100
PubChem Substance ID:
24853369
NACRES:
NA.22

Assay

85%

form

liquid

refractive index

n20/D 1.478 (lit.)

bp

173-175 °C (lit.)

solubility

ethanol: soluble 100 mg/mL, clear, colorless

density

0.837 g/mL at 25 °C (lit.)

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 volatile essential oil derived from Melaleuca alternifolia, shows antimicrobial properties against various human pathogens.

Signal Word

Danger

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

122.0 °F - closed cup

Flash Point(C)

50 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Tais Susane Pereira et al.
Journal of ethnopharmacology, 151(2), 852-857 (2013-12-10)
The volatile essential oil derived from the plant Melaleuca alternifolia, also called tea tree oil (TTO), is largely employed for its antimicrobial properties against several human pathogens. It is used in many topical formulations to treat cutaneous infections. Since very
Xiao-Dong Li et al.
Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials, 34(10), 1544-1548 (2012-03-01)
To extract the essential oils from the Seedlings, the Aseptic Seedlings and the Tissue Culture Seedlings of Thymus vulgaris and analyze their chemical components and the relative contents. The essential oils were extracted by steam distillation, the chemical components and
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
Mohammad S Abu-Darwish et al.
Natural product research, 26(14), 1310-1317 (2011-06-29)
The effect of plant space and time of harvesting on yield and quality of Thymus vulgaris was evaluated in Jordan. Thyme was cultivated in rows of 50 cm apart with inter-row spacing of 15, 30 or 45 cm and was grown at
Ekhteraei Tousi Samaneh et al.
Natural product research, 24(19), 1834-1842 (2010-11-26)
Essential oils from the subterranean organs of three species of Valeriana L. from Iran (Valeriana sisymbriifolia Vahl, Valeriana alliariifolia Adams and Valeriana officinalis L.) belonging to Valerianaceae family have been obtained by hydrodistillation and analysed by gas chromatography-mass spectrometry in
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