Solvents - Oxygenated Available — Bulk Only

alpha-Terpineol (α-Terpineol)

CAS 98-55-5 · Formula C10H18O · MW 154.25 g/mol

A lilac-note terpene alcohol bridging fragrance, flavor, and solvent duty. It is widely used as a fragrance ingredient in perfumes, soaps, and cosmetics, as a synthetic flavoring agent, and as an organic solvent.

Safety Data Sheet
HS Code
2906.19
At a Glance
Material Family
Solvents - Oxygenated
Record Type
Pure compound
Primary Role
Solvency · Biocidal Action
Functional Roles
Solvency Biocidal Action Wetting
Industries Served
Industrial Manufacturing Oil & Gas
Applications & Use Cases
  • ▸ Fragrance: Lilac-note ingredient in perfumes and soaps.
  • ▸ Flavor: Synthetic flavoring agent.
  • ▸ Solvent: Organic solvent and fat denaturant for soap manufacture.
  • ▸ Cleaning products: Component of pine-oil cleaners.
Physical Properties
Melting Point
35-40 °C
Boiling Point
218-221 °C
Density
0.935 at 20 °C/20 °C
Solubility
1:8 OR MORE IN 50% ALCOHOL; SOL IN PROPYLENE GLYCOL
Vapor Pressure
0.04
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2906 . 19
Chapter 29
Organic chemicals
Heading 29.06
Internationally harmonized (WCO HS)
Subheading 2906.19
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
98-55-5
Molecular Formula
C10H18O
Molecular Weight
154.25 g/mol
IUPAC Name
2-(4-methylcyclohex-3-en-1-yl)propan-2-ol
PubChem CID
17100
InChI Key
WUOACPNHFRMFPN-UHFFFAOYSA-N
Synonyms & Trade Names
alpha-TERPINEOL 2-(4-methylcyclohex-3-en-1-yl)propan-2-ol p-Menth-1-en-8-ol 1-p-Menthen-8-ol Terpineol 350 alpha-Terpinenol Terpenol 1-Menthene-8-ol Terpineol schlechthin CARVOMENTHENOL alpha,alpha,4-Trimethyl-3-cyclohexene-1-methanol 1-Methyl-4-isopropyl-1-cyclohexen-8-ol 2-(4-Methyl-3-cyclohexenyl)-2-propanol FEMA No. 3045 1-Methyl-4-isopropyl-1-cyclohexene-8-ol 3-Cyclohexene-1-methanol, alpha,alpha,4-trimethyl- PC 593
Full Description

alpha-Terpineol (CAS 98-55-5), a cyclic terpene alcohol with a characteristic lilac odor. It is widely used as a fragrance ingredient in perfumes, soaps, and cosmetics, as a synthetic flavoring agent, and as an organic solvent. It is also a principal component of pine-oil cleaning and disinfectant formulations.

Frequently Asked Questions

What is alpha-terpineol used for?

Alpha-terpineol (CAS 98-55-5, C10H18O) is a cyclic terpene alcohol with a lilac odor. It is used as a fragrance ingredient in perfumes, soaps, and cosmetics, as a synthetic flavoring agent, and as an organic solvent. It is also a principal component of pine-oil cleaning and disinfectant formulations.

Is alpha-terpineol natural or synthetic?

Alpha-terpineol occurs naturally in pine oil and many essential oils, and is also produced synthetically. Both natural- and synthetic-origin grades are supplied to the same chemical identity (CAS 98-55-5); the source and purity of each lot are stated on the CoA.

What is the chemical formula and molecular weight of alpha-terpineol?

Alpha-terpineol has the molecular formula C10H18O (molecular weight approximately 154.25 g/mol) and CAS 98-55-5. It is a cyclic terpene alcohol; purity and isomer content vary by grade and are confirmed on the CoA.

What HS code applies to alpha-terpineol?

Alpha-terpineol classifies under HS 2906.19 — cyclic alcohols (cyclanic, cyclenic or cycloterpenic), other. Confirm the destination-country tariff line with your customs broker.

What is the cost of bulk alpha-terpineol?

Bulk pricing depends on grade (fragrance/flavor vs. technical/solvent) and order volume. We supply manufacturers in drums, totes, and IBCs — request a bulk quote with your target grade and tonnage for current pricing, SDS, and CoA.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.

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