Substance Identity
CAS Number 4251-01-8
Chemical Name 1,4-Benzenediamine, N,N -bis(1-methylethyl)-
Type of substance Organic
SMILES N(c(ccc(NC(C)C)c1)c1)C(C)C
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)? Yes
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
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 37.5
MITI probability of biodegradation 0.0059
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.1003

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 2.52
Log BAF T2MTL predicted by Gobas 1.3418853252456
Log BCF 5% T2LTL predicted by Gobas 1.25119949830843
Log BCF Max predicted by OASIS 2.0252018666523
Log BCF predicted by BCFWIN 1.241

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.7244
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 0.7244
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 46.259
Toxicity to fish (LC50 in mg/l) as predicted by Aster 25.393855
Toxicity to fish (LC50 in mg/l) as predicted by PNN 37.93037
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 9.204
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 3.308
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 1.54E+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


Underlying data regarding Complex Hazard Assessment