alpha-Terpineol
Also known as: Terpineol, p-Menth-1-en-8-ol, 2-(4-Methylcyclohex-3-en-1-yl)propan-2-ol, 3-Cyclohexene-1-methanol, α,α,4-trimethyl-, α,α,4-Trimethyl-3-cyclohexene-1-methanol, 1-Methyl-4-(1-hydroxy-1-methylethyl)-1-cyclohexene
alpha-Terpineol (CAS 98-55-5) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H18O and a molecular weight of 154.249 g/mol. Key properties include a melting point of 31-34ºC, a boiling point of 217.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 89.4±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 98-55-5
- Jingsj CID
- J-39843-7
- Molecular Formula
- C10H18O
- Molecular Weight
- 154.249 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 31-34ºC |
|---|---|
| Boiling Point | 217.5±0.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 89.4±0.0 °C |
| Exact Mass | 154.135757 |
| PSA | 20.23000 |
| LogP | 2.79 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.483 |
| Additional Property | negligible |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
Activity & Biological Data
| Additional Information | [1]. Park SN, et al. Antimicrobial effect of linalool and α-terpineol against periodontopathic and cariogenic bacteria. Anaerobe. 2012 Jun;18(3):369-72. [2]. Park MJ, et al. Effect of citral, eugenol, nerolidol and alpha-terpineol on the ultrastructural changes of Trichophyton mentagrophytes. Fitoterapia. 2009 Jul;80(5):290-6. |
|---|
Customs & Trade Information
| HS Code | 2906199090 |
|---|---|
| Summary | 2906199090. cyclanic, cyclenic or cyclotherpenic alcohols. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of alpha-Terpineol?
The CAS number of alpha-Terpineol is 98-55-5.
What are the molecular formula and molecular weight of alpha-Terpineol?
alpha-Terpineol has molecular formula C10H18O and molecular weight 154.249 g/mol.
Is alpha-Terpineol hazardous?
alpha-Terpineol has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of alpha-Terpineol?
For alpha-Terpineol, Upstream Products: Cyclohexanemethanol, 4-hydroxy-.alpha., .alpha.,4-trimethyl-, Beta-pinene, limonene; Downstream Products: 4-(2-Methoxypropan-2-yl)-1-methylcyclohexene, Dihydro-α-terpineol, 2-(4-Methylphenyl)propan-2-ol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "alpha-Terpineol (CAS 98-55-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39843-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.