ChemicalBook > CAS DataBase List > Benzofuran

Benzofuran

Product Name
Benzofuran
CAS No.
271-89-6
Chemical Name
Benzofuran
Synonyms
Coumarone;2,3-BENZOFURAN;1-BENZOFURAN;CUMARONE;BENZO[B]FURAN;BENZOFURANE;Cumaron;coumaron;1-oxidene;BENZOFURAN
CBNumber
CB8853413
Molecular Formula
C8H6O
Formula Weight
118.14
MOL File
271-89-6.mol
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Benzofuran Property

Melting point:
<-18℃
Boiling point:
173-175 °C(lit.)
Density 
1.095 g/mL at 20 °C(lit.)
refractive index 
n20/D 1.567
Flash point:
133 °F
storage temp. 
2-8°C
solubility 
soluble in Dichloromethane
form 
Crystalline Powder or Crystals
pka
33.2
color 
Yellow to green to yellow-brown
Water Solubility 
insoluble
Merck 
14,1088
BRN 
107704
LogP
2.670
CAS DataBase Reference
271-89-6(CAS DataBase Reference)
NIST Chemistry Reference
Benzofuran(271-89-6)
IARC
2B (Vol. 63) 1995
EPA Substance Registry System
Benzofuran (271-89-6)
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Safety

Hazard Codes 
Xn,Xi
Risk Statements 
40-52-10
Safety Statements 
36/37-16
RIDADR 
UN 1993 3/PG 3
WGK Germany 
3
RTECS 
DF6423800
F 
10-23
Hazard Note 
Irritant
TSCA 
Yes
HazardClass 
3
PackingGroup 
III
HS Code 
29329900
Hazardous Substances Data
271-89-6(Hazardous Substances Data)
Toxicity
Isolated from coal oil and used in the manufacture of coumarone-indene resin. This resin is used in paints, glue, etc. and is allowed in food packaging. Little is known about the toxicity of benzofuran to humans but acute toxicity in experimental animals involves liver and kidney failure. Chronic toxicity to animals involves damage to the liver, kidneys, lungs, and stomach. Lifetime administration (oral administration) caused cancer in both rats and mice.
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H351Suspected of causing cancer

Precautionary statements

P201Obtain special instructions before use.

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
B8002
Product name
2,3-Benzofuran
Purity
99%
Packaging
5g
Price
$59.6
Updated
2025/07/31
Sigma-Aldrich
Product number
43042
Product name
2,3-Benzofuran
Purity
analytical standard
Packaging
1ml
Price
$73.5
Updated
2022/05/15
TCI Chemical
Product number
B0060
Product name
2,3-Benzofuran
Purity
>99.0%(GC)
Packaging
5g
Price
$31
Updated
2025/07/31
TCI Chemical
Product number
B0060
Product name
2,3-Benzofuran
Purity
>99.0%(GC)
Packaging
25g
Price
$90
Updated
2025/07/31
Sigma-Aldrich
Product number
B8002
Product name
2,3-Benzofuran
Purity
99%
Packaging
25g
Price
$77.1
Updated
2025/07/31
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Benzofuran Chemical Properties,Usage,Production

Chemical Properties

2,3-Benzofuran is a colorless, sweet-smelling, oily liquid made by processing coal into coal oil. It may also be formed during other uses of coal or oil. 2,3-Benzofuran is not used for any commercial purposes, but the part of the coal oil that contains 2,3-benzofuran is made into a plastic called coumarone-indene resin. This resin resists corrosion and is used to make paints and varnishes. The resin also provides water resistance and is used in coatings on paper products and fabrics. It is used as an adhesive in food containers and some asphalt fl oor tiles. The resin has been approved for use in food packages and as a coating on citrus fruits. We do not know how often the resin is used or whether any 2,3-benzofuran in the coating or packaging gets into the food. 2,3-Benzofuran may enter the air, water, and soil during its manufacture, use, or storage at hazardous waste sites. Breathing contaminated air or touching the chemical in the workplace is the source of human exposure.

Uses

As an intermediate in the polymerization of coumarone-indene resins found in various corrosion-resistant coatings such as paints and varnishes; in water-resistant coatings for paper products and fabrics; in adhesives for use in food containers

Uses

Benzo[b]furan is used in the manufacture of coumarone-indene resin. It has been used to make floor tiles and other products. It is also used as a coating on grapefruit, lemons, lirnes, oranges, tangelos and tangerines and in the production of COITosion-resistant paints and varnishes, in water-resistant coatings on paper products and fabrics and as adhesives in food containers.

Uses

manufacture of coumarone-indene resins.

Definition

A bicyclic ring compound derived from coal tar naphtha, the parent substance of coumarone-indene resins.

Synthesis Reference(s)

The Journal of Organic Chemistry, 44, p. 28, 1979 DOI: 10.1021/jo01315a008

General Description

Clear oily yellow liquid with an aromatic odor.

Air & Water Reactions

Highly flammable. May be sensitive to prolonged exposure to air. Very slightly water soluble.

Reactivity Profile

Benzofuran slowly polymerizes on standing. Benzofuran may be sensitive to prolonged exposure to air. Benzofuran is polymerized by H2SO4.

Hazard

Possible carcinogen.

Health Hazard

ACUTE/CHRONIC HAZARDS: When heated to decomposition Benzofuran emits acrid and irritating smoke and fumes.

Health Hazard

Rats and mice that ingested high levels of 2,3-benzofuran over a short time had liver and kidney damage. Those exposed over a long time to moderate levels had liver, kidney, lung, and stomach damage. In one study, the ability of animals to reproduce was not affected. We do not know if people will experience health effects similar to those seen in animals.

Fire Hazard

Benzofuran is combustible.

Carcinogenicity

Benzofuran was not mutagenic in bacterial assays but did cause chromosomal aberrations and sister chromatid exchanges in cultured rodent cells.

Purification Methods

Benzofuran is steam distilled, dissolved in Et2O, washed with 5% aqueous NaOH, saturated NaCl, dried (Na2SO4), evaporated and redistilled. UV: max 245, 275, 282nm (log 4.08, 3.45, 3.48). The picrate has m 102-103o. [Burgstahler & Worden Org Synth Coll Vol V 251 1973, NMR: Black & Heffernan Aust J Chem 18 353 1965, Beilstein 17/2 V 3.]

Benzofuran Preparation Products And Raw materials

Raw materials

Sodium acetate Indene Acetic anhydride Coumarin heavy benzol Sodium acetate trihydrate Phenoxyacetic acid COAL TAR Salicylaldehyde PETROLEUM ETHER COUMARONE RESIN Acetic acid

Preparation Products

Befunolol Benzofuran-2-boronic acid Indene 2,3-Dihydro-2,2-dimethyl-7-benzofuranol 3-(Benzofuran-2-yl)-3-oxopropanenitrile ,97% BENFURACARB Carbofuran 1-(1-BENZOFURAN-2-YL)-2-BROMOETHAN-1-ONE Citalopram 3-BROMO-1-BENZOFURAN 2-Acetylbenzofuran
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View Lastest Price from Benzofuran manufacturers

Career Henan Chemical Co
Product
Benzofuran 271-89-6
Price
US $0.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
100KG
Release date
2019-05-25

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