Substance Identity
CAS Number 6371-23-9
Chemical Name Benzo[b]thiophen-3(2H)-one, 5,7-dichloro-2-(6-chloro-4-methyl-3-oxobenzo[b]thien-2(3H)-ylidene)-4-methyl-
Type of substance Organic
SMILES O=C(c(c(S1)c(cc2Cl)Cl)c2C)C1=C(Sc(c3c(cc4Cl)C)c4)C3(=O)
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? Yes
Meets Human Health Categorization Criteria? No
Meets Environmental Criteria for Categorization? Yes
Persistent (P)? Yes
Rational for P QSAR
Bioaccumulative (B)? Yes
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? Yes
Rational for iT QSAR
DSL Quantity range (tonnes/year) 0 to 1T
Basis for Environment Categorization (PiT, BiT, PBiT) if categorized? PBiT

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Soil
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 182
MITI probability of biodegradation 0.0004
EPI Predicted Ozone reaction half-life (days) 6.549
EPI Predicted Atmospheric Oxidation half-life (days) 0.3047

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 6.56
Log BAF T2MTL predicted by Gobas 6.25313722581715
Log BCF 5% T2LTL predicted by Gobas 4.60734386761886
Log BCF Max predicted by OASIS 4.82364282730126
Log BCF predicted by BCFWIN 3.511

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.061
Toxicity to fish (LC50 in mg/l) as predicted by PNN 0.34757
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.061
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 6.13E-002

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


Underlying data regarding Complex Hazard Assessment