Substance Identity
CAS Number 118-75-2
Chemical Name 2,5-Cyclohexadiene-1,4-dione, 2,3,5,6-tetrachloro-
Type of substance Organic
SMILES O=C1C(Cl)=C(Cl)C(=O)C(Cl)=C1Cl
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 QSAR
Bioaccumulative (B)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT QSAR
DSL Quantity range (tonnes/year) >1T to 1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Water-Soil
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 60
MITI probability of biodegradation 0.0042
EPI Predicted Ozone reaction half-life (days) 160.1
EPI Predicted Atmospheric Oxidation half-life (days) 9

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 2.22
Log BAF T2MTL predicted by Gobas 1.05867081460355
Log BCF 5% T2LTL predicted by Gobas 0.973658812697845
Log BCF Max predicted by OASIS 1.82051969312318
Log BCF predicted by BCFWIN 1.006

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 74.7029
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 74.7029
Toxicity to fish (LC50 in mg/l) as predicted by PNN 0.06777
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 103.457
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 1.13E+000

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