04899

α-Terpineol

analytical standard

• Empirical Formula (Hill Notation): C₁₀H₁₈O
• CAS Number: 98-55-5
• Molecular Weight: 154.25
• Beilstein: 2325137
• EC Number: 233-986-8
• MDL number: MFCD00001557
• UNSPSC Code: 85151701
• PubChem Substance ID: 329747989
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• Assay: ≥95.0% (GC)
• shelf life: limited shelf life, expiry date on the label
• impurities: ≤1.0% water
• refractive index: n20/D 1.482 (lit.)
• bp: 217-218 °C (lit.)
• mp: 31-35 °C (lit.)
• density: 0.93 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; food and beverages; personal care
• format: neat
• SMILES string: CC1=CC[C@H](CC1)C(C)(C)O
• InChI: 1S/C10H18O/c1-8-4-6-9(7-5-8)10(2,3)11/h4,9,11H,5-7H2,1-3H3
• InChI key: WUOACPNHFRMFPN-UHFFFAOYSA-N

Description

General description

α-Terpineol is a monoterpene alcohol. It is one of the components responsible for the antifungal activity of Melaleuca alternifolia (tea tree) essential oil. The reaction rate constant of α-terpineol with OH radical and ozone was found to be (1.9±0.5)×10^-10cm³ molecule^-1s^-1 and (3.0±0.2)×10^-16cm³ molecule^-1s^-1, respectively.

Application

α-Terpineol has been used as a reference standard for the identification of α-terpineol in tequila by solid phase microextraction (SPME) and capillary gas chromatography−mass spectrometry (GC-MS), and in virgin olive oil samples by headspace SPME followed by GC-MS equipped with flame ionization detector (FID).
It may be used as a reference standard for the analysis of α-terpineol as trace volatile compound in wine by solid-phase extraction (SPE) followed by GC-MS and in essential oils and related compounds from aromatic plants by SPME and GC-MS.

α-Terpineol may be used in the synthesis of α-terpinyl esters of acetic acid and acetic anhydride via lipase-mediated esterification.

Other Notes

Depending on the ambient or transport temperature the aggregation state can vary.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315 - H319
• Precautionary Statements: P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P337 + P313
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2
• Storage Class Code: 10 - Combustible liquids
• WGK: WGK 1
• Flash Point(F): 195.8 °F - closed cup
• Flash Point(C): 91 °C - closed cup