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W355801

Sigma-Aldrich

α-Terpinene

≥89%, FCC, FG

Synonym(s):

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
FEMA Number:
3558
Beilstein:
1853379
Council of Europe no.:
11023
MDL number:
MFCD00001534
UNSPSC Code:
12164502
PubChem Substance ID:
24901781
Flavis number:
1.019
NACRES:
NA.21

biological source

synthetic

Quality Level

400

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 172.515

Assay

≥89%

refractive index

n20/D 1.478 (lit.)

bp

173-175 °C (lit.)

solubility

95% ethanol: soluble 1ml/2ml, clear, colorless

density

0.837 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

terpineol (mixture of isomers), Alpha-terpinene

Organoleptic

lemon; medicinal; citrus; woody

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 (1-isopropyl-4-methyl-1,3-cyclohexadiene, TER) is a monoterpene found in various plant volatile oils. It is commonly employed as flavoring additive in foods and beverages, as fragrance in cosmetics, and as scent in household products. It is one of the major component of the essential oil of Melaleuca alternifolia.

Application


  • Antidepressant and anxiolytic potential of Citrus reticulata Blanco essential oil: a network pharmacology and animal model study.: This study evaluates the antidepressant and anxiolytic effects of essential oils containing α-Terpinene, providing evidence of its therapeutic potential in mental health treatments (Nguyen et al., 2024).

Biochem/physiol Actions

Odor at 10%
Taste at 10 ppm

Other Notes

Natural occurrence: Celery, corriander, fennel, grapefruit, lemon, lime, orange and mandarin oils, nutmeg, oregano, black pepper and Scotch spearmint.

Signal Word

Danger

Hazard Classifications

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

WGK

WGK 2

Flash Point(F)

closed cup

Flash Point(C)

closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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B Oliva et al.
Letters in applied microbiology, 37(2), 185-187 (2003-07-16)
The aim of this study was to analyse the antimycotic properties of Melaleuca alternifolia essential oil (tea tree oil, TTO) and its principal components and to compare them with the activity of 5-fluorocytosine and amphotericin B. The screening for the
Competitive Formation of Endoperoxide and Hydroperoxide in the Reaction of Singlet Oxygen with α-Terpinene.
Matusch R and Schmidt G.
ChemInform, 22(39) (1991)
I B Araujo et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 34(5), 477-482 (1996-05-01)
alpha-Terpinene (1-isopropyl-4-methyl-1,3-cyclohexadiene) (TER) is a monoterpene found in the essential oils of a large variety of useful plants. Despite the widespread use of plants and essential oils containing TER in folk medicine potions and cosmetics, and as a flavouring food
M R Gomes-Carneiro et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 43(2), 247-252 (2004-12-29)
This study was undertaken to investigate the genotoxicity of beta-myrcene, alpha-terpinene and (+) and (-)-alpha-pinene, monoterpenes found in a variety of plant volatile oils. beta-myrcene, alpha-terpinene and alpha-pinene as well as plant oils containing these hydrocarbon monoterpenes have been used
Mosciano, G.
Perfumer & Flavorist, 27, 71-71 (2002)
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