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CAS Number: 271-89-6Picture of molecule3D/inchi
ECHA EINECS - REACH Pre-Reg:205-982-6
FDA UNII: LK6946W774
Nikkaji Web:J5.447J
Beilstein Number:0107704
XlogP3:2.70 (est)
Molecular Weight:118.13502000
Formula:C8 H6 O
BioActivity Summary:listing
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:natural substances and extractives
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
FDA Mainterm (IAUFC):271-89-6 ; BENZOFURAN
Physical Properties:
Appearance:colorless to pale yellow clear liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:1.09600 to 1.09900 @ 25.00 °C.
Pounds per Gallon - (est).: 9.120 to 9.145
Refractive Index:1.56600 to 1.56800 @ 20.00 °C.
Melting Point: -17.00 °C. @ 760.00 mm Hg
Boiling Point: 174.00 °C. @ 760.00 mm Hg
Boiling Point: 165.00 to 166.00 °C. @ 760.00 mm Hg (est)
Vapor Pressure:0.440000 mmHg @ 25.00 °C.
Flash Point: 133.00 °F. TCC ( 56.11 °C. )
logP (o/w): 2.670
Soluble in:
 water, 534.8 mg/L @ 25 °C (est)
Insoluble in:
Organoleptic Properties:
Flavor Type: styrene
styrene aromatic
Taste Description: styrene aromatic
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
None found
Santa Cruz Biotechnology
For experimental / research use only.
Sigma-Aldrich: Aldrich
For experimental / research use only.
2,3-Benzofuran 99%
For experimental / research use only.
2,3-Benzofuran >99.0%(GC)
Safety Information:
Preferred SDS: View
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
intraperitoneal-mouse LD50 500 mg/kg
European Journal of Medicinal Chemistry--Chimie Therapeutique. Vol. 12, Pg. 383, 1977.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
natural substances and extractives
Recommendation for 1-benzofuran usage levels up to:
 not for fragrance use.
Recommendation for 1-benzofuran flavor usage levels up to:
 not for flavor use.
Safety References:
EPI System: View
NIOSH International Chemical Safety Cards:search
Chemical Carcinogenesis Research Information System:Search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
Carcinogenic Potency Database:Search
EPA Substance Registry Services (TSCA):271-89-6
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :9223
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
EPA/NOAA CAMEO:hazardous materials
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:271-89-6
Pubchem (cid):9223
Pubchem (sid):134974109
Other Information:
(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Indirect Additives used in Food Contact Substances:View
KEGG (GenomeNet):C14512
HMDB (The Human Metabolome Database):HMDB32929
Export Tariff Code:2932.99.3200
Typical G.C.
VCF-Online:VCF Volatile Compounds in Food
EFSA Update of results on the monitoring of furan levels in food:Read Report
EFSA Previous report: Results on the monitoring of furan levels in food:Read Report
EFSA Report of the CONTAM Panel on provisional findings on furan in food:Read Report
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 coffee roasted coffee
Search PMC Picture
 coix lachryma-jobi
Search Trop Picture
 gentian yellow gentian
Search Trop Picture
 michelia alba flower absolute @ 0.14%
Data GC Search Trop Picture
 thevetia peruviana (pers.) k. schum. flower oil brazil @ 5.30%
Data GC Search Trop Picture
Maillard prod. present in roasted coffee aroma. Constit. of Coix lachryma-jobi (Job's tears) and Gentiana lutea (yellow gentian) Benzofuran is the heterocyclic compound consisting of fused benzene and furan rings. It is the parent of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants.
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