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Heterocyclic building blocks

Sotolone

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

CAS 28664-35-9Formula C6H8O3Molar mass 128.13 g/molEC 249-136-4
GHS signal word: Warning. Pictograms: Harmful or irritant 13 suppliers listed
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Sotolone chemical structure, C6H8O3, CAS 28664-35-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
28664-35-9
Formula
C6H8O3
Molar mass
128.13 g/mol
EC number
249-136-4
HS code
293220
Category
Heterocyclic building blocks

What is Sotolone?

Plain description, key identifiers and synonyms

Sotolone is a butenolide. It has a role as a metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-hydroxy-2,3-dimethyl-2H-furan-5-one
CAS number
28664-35-9 CAS number cross-checked
EC number
249-136-4
Molecular formula
C6H8O3
UNII
T62RL2NEGW
MDL number
MFCD00059957
InChIKey
UNYNVICDCJHOPO-UHFFFAOYSA-N
InChI
InChI=1S/C6H8O3/c1-3-4(2)9-6(8)5(3)7/h4,7H,1-2H3
SMILES (canonical and isomeric)
CC1C(=C(C(=O)O1)O)C

Synonyms

  • 3-Hydroxy-4,5-dimethylfuran-2(5H)-one
  • 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one
  • sotolon
  • 2(5h)-FURANONE, 3-HYDROXY-4,5-DIMETHYL-
  • 2,3-Dimethyl-4-hydroxy-2,5-dihydrofuran-5-one
  • 4,5-Dimethyl-3-hydroxy-2,5-dihydro-2-furanone
  • 4,5-Dimethyl-3-hydroxy-2(5H)-furanone
  • Sautalone
  • 3-Hydroxy-4,5-dimethyl-2(5H)-furanone
  • 4-hydroxy-2,3-dimethyl-2H-furan-5-one
  • 2-Hydroxy-3-methyl-2-penten-4-olide
  • 2-Hydroxy-3,4-dimethyl-2-buten-1,4-olide
  • 3-hydroxy-4,5-dimethyl-2,5-dihydrofuran-2-one
  • 3-Hydroxy-4,5-dimethyl-5H-furan-2-one
  • Caramel furanone
  • Fenugreck Lactone
  • 3-Hydroxy-4,5(R)-dimethyl-2(5H)-furanone
  • 2,3-dimethyl-4-oxidanyl-2H-furan-5-on
  • 3-Hydroxy-4,5-dimethyl-Furan-2(5H)-one
  • 3,4-Dimethyl-2-hydroxy-2-butan-1,4-olide
  • Furan-2(5H)-one, 3-hydroxy-4,5-dimethyl-
  • Sotolone Solution in Isopropanol, 1000ug/mL
  • 3-Hydroxy-4,5-dimethylfuran-2(5H)-one, 97%
  • 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, >=97%, FG
  • 4,5-Dimethyl-3-hydroxy-2,5-dihydrofuran-2-one, analytical standard

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

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

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=CCO1

O=C1C=CCO1

1 ring, 6 atoms, the 2(5H)-Furanone ring system.

877 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.
Precautionary statements (5)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P301 + P317If swallowed: Get medical help.
  • P330Rinse mouth.
  • 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

Sotolone suppliers

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

All 13 suppliers
13 of 13 offers

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

13 suppliers in 4 countries

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Sotolone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Roles

  • metabolite

Functional uses

  • Flavouring and nutrient
  • Fragrance

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce, Regulatory flags: Added by a premanufacture notice

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Sotolone is traded under.

HS 2932.20Indicative HS code

Lactones

World exports in 2024
$1.97B
−4.7% vs 2023, imports $2.07B
2019 to 2024
Top exporters
  1. China56.3%
  2. India * partner reported7.4%
  3. Germany7.3%
Top importers
  1. United States14.2%
  2. India * partner reported13.5%
  3. Brazil8.5%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Sotolone?

Sotolone is a butenolide. It has a role as a metabolite.

What is the CAS number of Sotolone?

The CAS registry number of Sotolone is 28664-35-9.

What is the molecular formula and weight of Sotolone?

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

What is Sotolone used for?

Known uses and roles of Sotolone include building blocks in research and laboratory, screening compounds in research and laboratory, metabolite, flavouring and nutrient and fragrance.

Is Sotolone hazardous?

Sotolone carries the GHS signal word "Warning". Main hazards: harmful if swallowed. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Sotolone?

Sotolone is usually classified under HS code 293220 (Lactones). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Sotolone?

CompoundList lists 13 suppliers of Sotolone in China, United States, Canada and South Africa. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Sotolone?

Suppliers quote Sotolone 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 Sotolone

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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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