Substance Identity
CAS Number 53-19-0
Chemical Name Benzene, 1-chloro-2-[2,2-dichloro-1-(4-chlorophenyl)ethyl]-
Type of substance Organic
SMILES ClC(Cl)C(c1ccc(Cl)cc1)c2ccccc2Cl
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) Unknown Quantity
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 0.0007
TOPKAT probability of biodegradation 0.003
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 2.462

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 5.87
Log BAF T2MTL predicted by Gobas 5.53559318305428
Log BCF 5% T2LTL predicted by Gobas 4.3846072805742
Log BCF Max predicted by OASIS 4.73776577793118
Log BCF predicted by BCFWIN 3.822

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.0228
Robust Study Summary iT
RSS_iT_53190.doc
53190-AT-48hmortality-anoqua.doc
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 0.0228
Toxicity to fish (LC50 in mg/l) as predicted by PNN 0.29382
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.06
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 0.021
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 1.83E-003

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