CompoundList
Sign in
Heterocyclic building blocks

Benzofuran

Also known as 2,3-Benzofuran, Coumarone, 1-Benzofuran

CAS 271-89-6Formula C8H6OMolar mass 118.14 g/molEC 205-982-6
GHS signal word: Warning. Pictograms: Flammable, Serious health hazard 50 suppliers listed
Get quotes Compare 50 suppliers
Benzofuran chemical structure, C8H6O, CAS 271-89-6
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Not solid @ -18 °C, oil
Melting point
<-18
Boiling point
174 °C
Density
Relative density (water = 1): 1.09
Flash point
56 °C
HS code
293299
Category
Heterocyclic building blocks
UN number
UN 1993
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Benzofuran?

Plain description, key identifiers and synonyms

1-benzofuran is a benzofuran consisting of fused benzene and furan rings. It is the parent compound of the class of 1-benzofurans. It is a benzofuran and a member of 1-benzofurans.

Benzofuran is a heterocyclic compound consisting of fused benzene and furan rings.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-benzofuran
CAS number
271-89-6 CAS number cross-checked
EC number
205-982-6
Molecular formula
C8H6O
UNII
LK6946W774
MDL number
MFCD00005847
InChIKey
IANQTJSKSUMEQM-UHFFFAOYSA-N
InChI
InChI=1S/C8H6O/c1-2-4-8-7(3-1)5-6-9-8/h1-6H
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C=CO2

Synonyms

  • 2,3-Benzofuran
  • Coumarone
  • 1-Benzofuran
  • Benzo[b]furan
  • Cumarone
  • Benzofurfuran
  • Benzo(b)furan
  • 1-Oxindene
  • Coumaron
  • 1-Oxidene
  • Benzofuran (IUPAC)
  • AT 33852
  • benzo[b]furane
  • Benzofuran (1mg/mL In Dichloromethane)
  • Cumaron
  • bezofuran
  • 1-Oxaindene
  • 1-Benzofuran #
  • 2,3-Benzofuran, 99%
  • 5-17-02-00003 (Beilstein Handbook Reference)
  • 2,3-Benzofuran, analytical standard
  • Benzofuran Solution in Toluene, 100ug/mL
  • Coumarone, 2,3-Benzofuran, Benzo[b]furan
  • Benzofuran Solution in Toluene, 1000ug/mL

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
Not solid @ -18 °C, oilexp.
Odour
Aromatic odorexp.
Melting point
<-18exp.
Boiling point
174 °Cexp.
Density
Relative density (water = 1): 1.09exp.
Flash point
56 °Cexp.
Solubility
Insol in water and aq alkaline solns, miscible with benzene, petroleum ether, absolute alcohol, ether.exp.
Vapour pressure
0.44 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
118.14 g/molcalc.
Exact mass
118.0419 Dacalc.
LogP (octanol/water)
2.43calc.
Topological polar surface area
13.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
0calc.
Heavy atoms
9calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0calc.
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, c1ccc2occc2c1

c1ccc2occc2c1

2 rings, 9 atoms. This chemical is the scaffold itself.

6,383 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS02: Flammable
Flammable
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H226Flammable liquid and vapour.
  • H351Suspected of causing cancer.
  • H412Harmful to aquatic life with long lasting effects.
Precautionary statements (15)
  • P203Obtain, read and follow all safety instructions before use.
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P233Keep container tightly closed.
  • P240Ground and bond container and receiving equipment.
  • P241Use explosion-proof electrical, ventilating and lighting equipment.
  • P242Use non-sparking tools.
  • P243Take action to prevent static discharges.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P303 + P361 + P353If on skin (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower.
  • P318If exposed or concerned, get medical advice.
  • P370 + P378In case of fire: Use appropriate media to extinguish.
  • P403 + P235Store in a well-ventilated place. Keep cool.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1993
Transport hazard class
3

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

Benzofuran suppliers

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

All 50 suppliers
30 of 30 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

50 suppliers in 11 countries

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Benzofuran 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.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Manufacture of coumarone-indene resins.

No large-scale commercial use has been found for pure benzofuran.

How it is made

Isolation from coal tar oils, synthesis by heating phenoxyacetaldehyde with zinc chloride and acetic acid.

Derived from crude heavy solvent naphtha fraction of coal tar light oil, obtained as byproduct in coking of bituminous coal.

Calcining coumarilic acid (from coumarin) with lime.

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 Benzofuran is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Benzofuran?

1-benzofuran is a benzofuran consisting of fused benzene and furan rings. It is the parent compound of the class of 1-benzofurans. It is a benzofuran and a member of 1-benzofurans.

What is the CAS number of Benzofuran?

The CAS registry number of Benzofuran is 271-89-6.

What is the molecular formula and weight of Benzofuran?

The molecular formula of Benzofuran is C8H6O and its molar mass is 118.14 g/mol.

What is Benzofuran used for?

Manufacture of coumarone-indene resins. No large-scale commercial use has been found for pure benzofuran.

Is Benzofuran hazardous?

Benzofuran carries the GHS signal word "Warning". Main hazards: flammable liquid and vapour, suspected of causing cancer, harmful 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 Benzofuran?

Benzofuran is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Benzofuran?

CompoundList lists 50 suppliers of Benzofuran in China, United States, United Kingdom, Germany and 7 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Benzofuran in India?

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

What is the price of Benzofuran?

Suppliers quote Benzofuran 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 Benzofuran

Get quotes for Benzofuran

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Benzofuran
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Benzofuran with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/benzofuran-271-89-6" title="Benzofuran structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Heterocyclic building blocks or HS code 293299

50 suppliers
Free quotes, contact stays private
Get quotes