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Synthetic aroma chemicals

Thymol

Also known as 2-Isopropyl-5-methylphenol, 5-Methyl-2-(1-methylethyl)phenol, Thyme camphor

CAS 89-83-8Formula C10H14OMolar mass 150.22 g/molEC 201-944-8
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant, Hazardous to the environment 181 suppliers listed Drug substance
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Thymol chemical structure, C10H14O, CAS 89-83-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless, translucent crystals or plates from ethyl acetate, acetic acid or dimethyl ca…
Melting point
49.6 °C
Boiling point
233 °C
Density
0.9699 g/cm³ at 25 °C
Flash point
110 °C
HS code
290719
Category
Synthetic aroma chemicals
Illustrative photo, colourless crystals beside an amber glass bottle on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Thymol?

Plain description, key identifiers and synonyms

Thymol is a phenol that is a natural monoterpene derivative of cymene. It has a role as a volatile oil component. It is a monoterpenoid and a member of phenols. It derives from a hydride of a p-cymene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
5-methyl-2-propan-2-ylphenol
CAS number
89-83-8 CAS number cross-checked
EC number
201-944-8
Molecular formula
C10H14O
UNII
3J50XA376E
MDL number
MFCD00002309
INCI name
THYMOL
InChIKey
MGSRCZKZVOBKFT-UHFFFAOYSA-N
InChI
InChI=1S/C10H14O/c1-7(2)9-5-4-8(3)6-10(9)11/h4-7,11H,1-3H3
SMILES (canonical and isomeric)
CC1=CC(=C(C=C1)C(C)C)O

Synonyms

  • 2-Isopropyl-5-methylphenol
  • 5-Methyl-2-(1-methylethyl)phenol
  • Thyme camphor
  • 5-Methyl-2-isopropylphenol
  • 6-Isopropyl-m-cresol
  • 3-p-Cymenol
  • m-Thymol
  • p-Cymen-3-ol
  • 3-Hydroxy-p-cymene
  • Thymic acid
  • 6-Isopropyl-3-methylphenol
  • Phenol, 5-methyl-2-(1-methylethyl)-
  • Isopropyl cresol
  • Apiguard
  • 2-isopropyl-5-methyl-phenol
  • 3-Methyl-6-isopropylphenol
  • 5-Methyl-2-isopropyl-1-phenol
  • 1-Hydroxy-5-methyl-2-isopropylbenzene
  • 5-methyl-2-propan-2-ylphenol
  • 6-Isopropyl-p-cresol
  • 1-Methyl-3-hydroxy-4-isopropylbenzene
  • 2-Hydroxy-1-isopropyl-4-methylbenzene
  • Cymophenol, alpha-
  • 3-Hydroxy-1-methyl-4-isopropylbenzene
  • IPMP
Show all 39 synonyms
  • Thymolum
  • 2 Isopropyl 5 Methylphenol
  • Tellodont
  • Tellora
  • 2 Isopropyl 5 Methyl Phenol
  • Thergy
  • Eftab
  • Sotol
  • Valda
  • Influenza Care
  • Common Colds
  • Gppe mthwsh tab
  • Acne Vanish
  • Acute Bronchitis

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
Colorless, translucent crystals or plates from ethyl acetate, acetic acid or dimethyl carbonateexp.
Odour
Odor of thymeexp.
Taste
Pungent, causticexp.
Melting point
49.6 °Cexp.
Boiling point
233 °Cexp.
Density
0.9699 g/cm³ at 25 °Cexp.
Flash point
110 °Cexp.
Solubility
In water, 900 mg/L at 20 °Cexp.
Vapour pressure
VP: 1 mm Hg at 64 °Cexp.

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
150.22 g/molcalc.
Exact mass
150.1045 Dacalc.
LogP (octanol/water)
2.82calc.
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
1calc.
Fraction sp3 carbons
0.4calc.
Formal charge
0calc.
Stereocentres
0calc.
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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H302Harmful if swallowed.
  • H314Causes severe skin burns and eye damage.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (17)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P363Wash contaminated clothing before reuse.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Thymol suppliers

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All 181 suppliers
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Where suppliers are based

181 suppliers in 25 countries

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Thymol 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

For destroying mold, preserving documents, art objects, and urine. Stabilizer (antioxidant) for trichloroethylene, halothane.

Active ingredient in pesticide products registered for use as animal repellants, fungicides/fungistats, medical disinfectants, tuberculocides, and virucides.

For use against Varroa mites in honeybee colonies.

Industrial uses: Fragrance.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name THYMOL(denaturant, fragrance, oral care, skin conditioning - miscellaneous)

Pharmacological actions

  • Anti-Infective Agents
  • Anti-Infective Agents, Local
  • Antifungal Agents

Roles

  • eukaryotic metabolite
  • metabolite
  • plant metabolite
  • volatile oil component

Functional uses

  • Biocide
  • Deodorizer
  • Dye
  • Flavouring and nutrient
  • Fragrance
  • Processing aids not otherwise specified

Cosmetic functions

  • Denaturant
  • Fragrance
  • Oral care
  • Skin conditioning - miscellaneous

How it is made

By action of potassium nitrite on thymyl amine in acetic acid solution and subsequent heating of the diazonium salt to boiling, also by boiling 1 mol of 2,4-dibromomenthone with 6 mol of quinoline.

Obtained from the essential oil of Thymus vulgaris L. and Monarda punctata L., Labiatae.

Produced synthetically from p-cymene, piperitone, or m-cresol.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 604-032-00-1

Health and food

  • EU cosmetic ingredient inventory
  • Active ingredient in FDA approved drug labels

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 Thymol is traded under.

HS 2907.19Indicative HS code

Monophenols, other

World exports in 2024
$671M
+2.2% vs 2023, imports $781M
2019 to 2024
Top exporters
  1. China20.1%
  2. Germany14.4%
  3. Switzerland * partner reported11.1%
Top importers
  1. China16.3%
  2. Germany10.1%
  3. South Korea8.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Thymol, based on the data on this page

What is Thymol?

Thymol is a phenol that is a natural monoterpene derivative of cymene. It has a role as a volatile oil component. It is a monoterpenoid and a member of phenols. It derives from a hydride of a p-cymene.

What is the CAS number of Thymol?

The CAS registry number of Thymol is 89-83-8.

What is the molecular formula and weight of Thymol?

The molecular formula of Thymol is C10H14O and its molar mass is 150.22 g/mol.

What is Thymol used for?

For destroying mold, preserving documents, art objects, and urine. Stabilizer (antioxidant) for trichloroethylene, halothane. Active ingredient in pesticide products registered for use as animal repellants, fungicides/fungistats, medical disinfectants, tuberculocides, and virucides.

Is Thymol hazardous?

Thymol carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes severe skin burns and eye damage, toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Thymol?

Thymol is usually classified under HS code 290719 (Monophenols, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Thymol?

CompoundList lists 181 suppliers of Thymol in China, United States, India, Germany and 21 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Thymol in India?

31 suppliers in India list Thymol on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Thymol?

Suppliers quote Thymol 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 Thymol

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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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