Substance Identity
CAS Number 66214-54-8
Chemical Name Ethanol, 2,2'-[[4-[(4-nitrophenyl)azo]phenyl]imino]bis-, diacetate (ester)
Type of substance Organic
SMILES O=C(OCCN(c(ccc(N=Nc(ccc(N(=O)(=O))c1)c1)c2)c2)CCOC(=O)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)? Yes
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT QSAR
DSL Quantity range (tonnes/year) 0 to 1T

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) 60
MITI probability of biodegradation 0
EPI Predicted hydrolysis half-life (days) 2.51E+002
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.1284

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 4.75
Log BAF T2MTL predicted by Gobas 3.85167746812084
Log BCF 5% T2LTL predicted by Gobas 3.44101177020154
Log BCF Max predicted by OASIS 4.0226827554279
Log BCF predicted by BCFWIN 1

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 2.119
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 2.119
Toxicity to fish (LC50 in mg/l) as predicted by Aster 3.776529
Toxicity to fish (LC50 in mg/l) as predicted by PNN 8.24792
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 15.9
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 1.035
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 7.99E-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