Substance Identity
CAS Number 271-89-6
Chemical Name Benzofuran
Type of substance Organic
SMILES c1ccc2ccoc2c1
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? No
Meets Human Health Categorization Criteria? No
Meets Environmental Criteria for Categorization? No
Persistent (P)? No
Rational for P Experiment
Bioaccumulative (B)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT Experiment
DSL Quantity range (tonnes/year) >1T to 1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Air-Water
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 15
MITI probability of biodegradation 0.4591
TOPKAT probability of biodegradation 0.275
EPI Predicted Ozone reaction half-life (days) 999
Experimental Atmospheric Oxidation half-life (days) 0.286714328269288
Reference (oxidation) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
Robust Study Summary (oxidation)
271896.doc
EPI Predicted Atmospheric Oxidation half-life (days) 0.2868

Underlying data regarding Bioaccumulation

Empirical Log Kow 2.67
Log Kow predicted by KowWin 2.54
Log BAF T2MTL predicted by Gobas 1.48754449036709
Log BCF 5% T2LTL predicted by Gobas 1.39435686509202
Log BCF Max predicted by OASIS 2.03790500793773
Log BCF predicted by BCFWIN 1.356

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 14
Experimental result iT (mg/l) 14
Test species iT (Latin) Pimephales promelas
Test species iT (Common) Fathead minnow
Final EndPoint iT LC50
Exposure duration iT (hours) 96
Reference iT Center for Lake Superior Environmental Stud., Univ.of Wisconsin-Superior, Superior, WI I:355
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 27.213
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 44.2905
Toxicity to fish (LC50 in mg/l) as predicted by Aster 19.780719
Toxicity to fish (LC50 in mg/l) as predicted by PNN 11.74524
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 28.9
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 5.338
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 1.966
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.72E+001

Human Health data supporting decisions
Underlying data regarding potential for exposure

LPE/IPE/GPE Lowest Potential for Exposure (HC Simple Exposure Tool)

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment

AgencyAssessment
IARC Carcinogenicity - Group 2B

Underlying data regarding Complex Hazard Assessment