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Synthetic aroma chemicals

(L)-alpha-Terpineol

Also known as (-)-alpha-Terpineol, (S)-(-)-Terpineol, L-alpha-TERPINEOL

CAS 10482-56-1Formula C10H18OMolar mass 154.25 g/molEC 232-081-5
GHS signal word: Warning. Pictograms: Harmful or irritant 10 suppliers listed
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(L)-alpha-Terpineol chemical structure, C10H18O, CAS 10482-56-1
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Liquid
Melting point
36.4 °C
Boiling point
219 °C
Density
0.935 @ 20 °C/4 °C
HS code
290619
Category
Synthetic aroma chemicals
Illustrative photo, closed amber glass reagent bottles on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is (L)-alpha-Terpineol?

Plain description, key identifiers and synonyms

(S)-(-)-alpha-terpineol is the (S)-enantiomer of alpha-terpineol. It has a role as a plant metabolite. It is an enantiomer of a (R)-(+)-alpha-terpineol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2-[(1S)-4-methylcyclohex-3-en-1-yl]propan-2-ol
CAS number
10482-56-1 CAS number cross-checkedOther or deprecated CAS: 7785-53-7
EC numbers
232-081-5, 233-986-8
Molecular formula
C10H18O
UNII
21M14KDA67, N9K6X87HU9
MDL number
MFCD00075926
InChIKey
WUOACPNHFRMFPN-SECBINFHSA-N
InChI
InChI=1S/C10H18O/c1-8-4-6-9(7-5-8)10(2,3)11/h4,9,11H,5-7H2,1-3H3/t9-/m1/s1
Canonical SMILES
CC1=CCC(C(C)(C)O)CC1
Isomeric SMILES
CC1=CC[C@H](CC1)C(C)(C)O

Synonyms

  • (-)-alpha-Terpineol
  • (S)-(-)-Terpineol
  • L-alpha-TERPINEOL
  • 2-[(1S)-4-methylcyclohex-3-en-1-yl]propan-2-ol
  • alpha-Terpineol, (-)-
  • p-Menth-1-en-8-ol, (S)-(-)-
  • 3-Cyclohexene-1-methanol, alpha,alpha,4-trimethyl-, (1S)-
  • p-Menth-1-en-8-ol (S)-(-)-
  • 3-Cyclohexene-1-methanol, alpha,alpha,4-trimethyl-, (S)-
  • alpha-Terpieol
  • 3-Cyclohexene-1-methanol, alpha,alpha,4-trimethyl-, (1R)-
  • 2-((1S)-4-methylcyclohex-3-en-1-yl)propan-2-ol
  • LalphaTerpineol
  • ()alphaTerpineol
  • alphaTerpineol, l
  • pMenth1en8ol, (S)()
  • 3Cyclohexene1methanol, alpha,alpha,4trimethyl, (S)
  • 3-cyclohexene-1-methanol, alpha, alpha, 4-trimethyl-, (1S)-
  • (S)-alpha-terpineol
  • (S)-2-(4-methylcyclohex-3-en-1-yl)propan-2-ol
  • (-)-|A-Terpineol
  • (S)-(-)-alpha-terpineol
  • (S)-a-Terpineol
  • (-?)?-?|A-?Terpineol
  • (4S)-p-menth-1-en-8-ol
Show all 32 synonyms
  • (S)-2-(4-Methyl-3-cyclohexenyl)-2-propanol
  • 1-alpha-terpineol
  • (S)-(-)-p-menth-1-en-8-ol
  • (S)-p-Menth-1-en-8-ol
  • (S)-alpha,alpha,4-trimethyl-3-cyclohexene-1-methanol
  • 3-Cyclohexene-1-methanol, a,a,4-trimethyl-, (1S)-
  • (1S)-alpha,alpha,4-trimethyl-3-cyclohexene-1-methanol

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Liquidexp.
Melting point
36.4 °Cexp.
Boiling point
219 °Cexp.
Density
0.935 @ 20 °C/4 °Cexp.
Vapour pressure
5 mm Hg @ 80 to 81 mm Hgexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
154.25 g/molcalc.
Exact mass
154.1358 Dacalc.
LogP (octanol/water)
2.5calc.
Topological polar surface area
20.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
1calc.
Heavy atoms
11calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.8calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C1=CCCCC1

C1=CCCCC1

1 ring, 6 atoms, the Cyclohexene ring system.

5,167 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P302 + P352If on skin: Wash with plenty of water.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

(L)-alpha-Terpineol suppliers

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Where suppliers are based

10 suppliers in 5 countries

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(L)-alpha-Terpineol price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Perfumes, denaturing fats for soap manufacture, antiseptic (alpha-terpineol).

Solvent for hydrocarbon materials, mutual solvent for resins & cellulose esters & ethers, disinfectant (terpineol).

Antioxidant, flavoring agent (terpineol).

Perfume manufacturing, soap manufacturing, hydrocarbon solvent, solvent for resins, cellulose esters, and ethers, disinfectants, antioxidants, medicines, constituent of flavorings.

Roles

  • eukaryotic metabolite
  • metabolite
  • plant metabolite

Functional uses

  • Fragrance

How it is made

By heating terpin hydrate with phosphoric acid & distilling, or with dil sulfuric, using azeotropic separation, fractional distillation of pine oil. Occurs naturally in several essentail oils. Grades: technical, perfumery, extra, prime, fcc. (Terpineol)

Extraction of essential oils, fractional distilation of pine oils, wood processing industry.

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code (L)-alpha-Terpineol is traded under.

HS 2906.19Indicative HS code

Cyclanic, cyclenic or cycloterpenic, other

World exports in 2024
$613M
+18.7% vs 2023, imports $606M
2019 to 2024
Top exporters
  1. China34.2%
  2. India * partner reported10.1%
  3. Germany9.5%
Top importers
  1. United States19.8%
  2. Germany9.0%
  3. India * partner reported8.4%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for (L)-alpha-Terpineol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about (L)-alpha-Terpineol, based on the data on this page

What is (L)-alpha-Terpineol?

(S)-(-)-alpha-terpineol is the (S)-enantiomer of alpha-terpineol. It has a role as a plant metabolite. It is an enantiomer of a (R)-(+)-alpha-terpineol.

What is the CAS number of (L)-alpha-Terpineol?

The CAS registry number of (L)-alpha-Terpineol is 10482-56-1. Other or deprecated CAS numbers: 7785-53-7.

What is the molecular formula and weight of (L)-alpha-Terpineol?

The molecular formula of (L)-alpha-Terpineol is C10H18O and its molar mass is 154.25 g/mol.

What is (L)-alpha-Terpineol used for?

Perfumes, denaturing fats for soap manufacture, antiseptic (alpha-terpineol). Solvent for hydrocarbon materials, mutual solvent for resins & cellulose esters & ethers, disinfectant (terpineol). Antioxidant, flavoring agent (terpineol).

Is (L)-alpha-Terpineol hazardous?

(L)-alpha-Terpineol carries the GHS signal word "Warning". Main hazards: causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of (L)-alpha-Terpineol?

(L)-alpha-Terpineol is usually classified under HS code 290619 (Cyclanic, cyclenic or cycloterpenic, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy (L)-alpha-Terpineol?

CompoundList lists 10 suppliers of (L)-alpha-Terpineol in China, United States, France, Japan and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of (L)-alpha-Terpineol?

Suppliers quote (L)-alpha-Terpineol on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle (L)-alpha-Terpineol

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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