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Merck
CN

223182

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

Key Documents

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Quality Level

100

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.

Disclaimer

The product is not intended for use as a biocide under global biocide regulations, including but not limited to the US EPA′s Federal Insecticide Fungicide and Rodenticide Act, the European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR), and others.

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

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SHBL8464
SHBL7064
MKCG9331
MKBX4874V
MKBZ6060V

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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
Yonathan Asikin et al.
Journal of agricultural and food chemistry, 60(32), 7973-7980 (2012-07-19)
Citrus peels are important sources of various pleasant aroma compounds and valuable bioactive substances. To investigate differences in the composition and content of Shiikuwasha (Citrus depressa Hayata) peels from different cultivation lines, the composition of volatile aroma components, flavanones, and
Johanna Rudbäck et al.
Chemical research in toxicology, 25(3), 713-721 (2012-01-19)
The monoterpene α-terpinene is used as a fragrance compound and is present in different essential oils. It is one of the components responsible for the antioxidant activity of tea tree oil. α-Terpinene is structurally similar to other monoterpenes, e.g., limonene
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
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Protocols

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