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Synthetic aroma chemicals

Furaneol

Also known as 4-hydroxy-2,5-dimethylfuran-3(2H)-one, 2,5-Dimethyl-4-hydroxy-3(2H)-furanone, 4-Hydroxy-2,5-dimethyl-3(2H)-furanone

CAS 3658-77-3Formula C6H8O3Molar mass 128.13 g/molEC 222-908-8
GHS signal word: Warning. Pictograms: Harmful or irritant 41 suppliers listed
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Furaneol chemical structure, C6H8O3, CAS 3658-77-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Beige powder
Melting point
77 to 79
Boiling point
216 °C
Solubility
In water, 0.315 g/mL at 25 °C
HS code
293219
Category
Synthetic aroma chemicals
Illustrative photo, off-white crystalline powder in fibre drums in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Furaneol?

Plain description, key identifiers and synonyms

4-hydroxy-2,5-dimethylfuran-3-one is a member of the class of furans that is 2,5-dimethylfuran carrying additional oxo and hydroxy groups at positions 3 and 4 respectively. It has been found particularly in strawberries and other such fruits. It has a role as a flavouring agent, a fragrance and a plant metabolite. It is a member of furans, an enol and a cyclic ketone. It is a conjugate acid of a 4-hydroxy-2,5-dimethylfuran-3-olate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-hydroxy-2,5-dimethylfuran-3-one
CAS number
3658-77-3 CAS number cross-checkedOther or deprecated CAS: 192466-95-8
EC number
222-908-8
Molecular formula
C6H8O3
UNII
20PI8YZP7A
MDL number
MFCD00010706
INCI name
DIMETHYLHYDROXY FURANONE
InChIKey
INAXVXBDKKUCGI-UHFFFAOYSA-N
InChI
InChI=1S/C6H8O3/c1-3-5(7)6(8)4(2)9-3/h3,8H,1-2H3
SMILES (canonical and isomeric)
CC1C(=O)C(=C(O1)C)O

Synonyms

  • 4-hydroxy-2,5-dimethylfuran-3(2H)-one
  • 2,5-Dimethyl-4-hydroxy-3(2H)-furanone
  • 4-Hydroxy-2,5-dimethyl-3(2H)-furanone
  • 4-Hydroxy-2,5-dimethyl-3(2H)furanone
  • Alletone
  • Pineapple ketone
  • Dimethylhydroxy furanone
  • Strawberry furanone
  • 4-hydroxy-2,5-dimethylfuran-3-one
  • 3(2H)-Furanone, 4-hydroxy-2,5-dimethyl-
  • Coe 536
  • 2,5-Dimethyl-4-hydroxy-2,3-dihydrofuran-3-one
  • 2,5-Dimethyl-3-hydroxy-4-oxo-4,5-dihydrofuran
  • 4-hydroxy-2,5-dimethyl-2,3-dihydrofuran-3-one
  • 3(2H)-furanone, 2,5-dimethyl-4-hydroxy-
  • 2,5-Dimethyldihydrofuranolone
  • 2,5-dimethyl-4-hydroxy-3[2h]-furanone
  • 4-HDMF
  • Alnose
  • 4-Hydroxy-2,5-dimethylfuran-2(3H)-one
  • 2,5-Dimethyl-4-hydroxy-3(2H)-furanone-13C2
  • 2,5-dimethyl-4-hydroxy-3[2H] furanone
  • 4-hydroxy-2,5-dimethyl-3-furanone
  • Strawberry furanone 25% in PG
  • 4-hydroxy-2,5-dimethyl-2-hydrofuran-3-one
Show all 34 synonyms
  • 2,5-Dimethyl-4-hydroxy-3(2H)-furanone (Technical Grade)
  • Carmelan
  • 4-Hydroxy-2,5-dimethyl-3(2H)-furanone (natural)
  • Furaneol (Standard)
  • HDMF
  • 4-hydroxy-2,5-dimethyl-furan-3-one
  • dimethylhydroxyfuranone
  • (+/-)-Furaneol
  • Dimethyl dihydrofuranolone

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
Beige powderexp.
Odour
Relatively weak, nonspecific odor, dilute solutions develop a pineapple, strawberry-like odorexp.
Taste
Caramel flavorexp.
Melting point
77 to 79exp.
Boiling point
216 °Cexp.
Solubility
In water, 0.315 g/mL at 25 °Cexp.
Vapour pressure
0.008 mm Hg at 25 °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
128.13 g/molcalc.
Exact mass
128.0473 Dacalc.
LogP (octanol/water)
0.76calc.
Topological polar surface area
46.53 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.5calc.
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, O=C1C=COC1

O=C1C=COC1

1 ring, 6 atoms, the 3(2H)-Furanone ring system.

110 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

  • H302Harmful if swallowed.
  • H317May cause an allergic skin reaction.
  • H319Causes serious eye irritation.
Precautionary statements (15)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P272Contaminated work clothing should not be allowed out of the workplace.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • 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).
  • P330Rinse mouth.
  • P333 + P317If skin irritation or rash occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • 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

Furaneol suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 41 suppliers
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Where suppliers are based

41 suppliers in 9 countries

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Furaneol 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

Reported uses (ppm):

Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994) [Table#8337].

Flavoring of foods.

Cigarette additive.

Consumer uses: Fragrance.

Use classes: Cosmetics.

Cosmetic ingredient, INCI name DIMETHYLHYDROXY FURANONE(fragrance, tonic)

Roles

  • additive
  • eukaryotic metabolite
  • flavouring agent
  • food additive
  • food component
  • fragrance
  • metabolite
  • physiological role
  • plant metabolite

Functional uses

  • Deodorizer
  • Flavouring and nutrient
  • Fragrance
  • Humectant

Cosmetic functions

  • Fragrance
  • Tonic

How it is made

From dimethyl-3,4-dihydroxyfuran-2,5-dicarboxylate.

Manufactured in a multistep bioprocess from rhamnose.

It is synthesized by the reaction of hex-3-yne-2,5-diol with ozone and subsequent reductive work-up. ... The hexane-2,5-diol-3,4-dione formed in the oxidation step is then cyclized in a separate step to form furaneol.

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

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 Furaneol is traded under.

HS 2932.19Indicative HS code

Compounds containing an unfused furan ring (whether or not hydrogenated) in the…

World exports in 2024
$2.62B
−6.4% vs 2023, imports $2.56B
2019 to 2024
Top exporters
  1. Germany57.9%
  2. Italy11.5%
  3. China10.4%
Top importers
  1. Greece40.4%
  2. Japan16.3%
  3. Germany12.8%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Furaneol?

4-hydroxy-2,5-dimethylfuran-3-one is a member of the class of furans that is 2,5-dimethylfuran carrying additional oxo and hydroxy groups at positions 3 and 4 respectively. It has been found particularly in strawberries and other such fruits. It has a role as a flavouring agent, a fragrance and a plant metabolite.

What is the CAS number of Furaneol?

The CAS registry number of Furaneol is 3658-77-3. Other or deprecated CAS numbers: 192466-95-8.

What is the molecular formula and weight of Furaneol?

The molecular formula of Furaneol is C6H8O3 and its molar mass is 128.13 g/mol.

What is Furaneol used for?

Reported uses (ppm): Table: Reported uses (ppm): (Flavor and Extract Manufacturers' Association, 1994) [Table#8337]. Flavoring of foods. Cigarette additive. Consumer uses: Fragrance. Use classes: Cosmetics.

Is Furaneol hazardous?

Furaneol carries the GHS signal word "Warning". Main hazards: harmful if swallowed, may cause an allergic skin reaction, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Furaneol?

Furaneol is usually classified under HS code 293219 (Compounds containing an unfused furan ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Furaneol?

CompoundList lists 41 suppliers of Furaneol in China, India, United States, Canada and 5 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Furaneol in India?

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

What is the price of Furaneol?

Suppliers quote Furaneol 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 Furaneol

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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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