Substance Identity
CAS Number 12236-62-3
Chemical Name Butanamide, 2-[(4-chloro-2-nitrophenyl)azo]-N-(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)-3-oxo-
Type of substance Organic
SMILES O=C(Nc(c1cc(NC(=O)C(N=Nc(c(N(=O)(=O))cc(c2)Cl)c2)C(=O)C)c3)c3)N1
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? No
Meets Human Health Categorization Criteria? No
Other Human Health Priorities? Moderate
Meets Environmental Criteria for Categorization? No
Persistent (P)? Yes
Rational for P Category
Bioaccumulative (B)? No
Rational for B Category
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT Category
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) 182
MITI probability of biodegradation 0
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.05316

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 3.25
Log BAF T2MTL predicted by Gobas 2.06831976605425
Log BCF 5% T2LTL predicted by Gobas 1.96154109996344
Log BCF Max predicted by OASIS 2.61372741869297
Log BCF predicted by BCFWIN 1

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 20.65
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 20.65
Toxicity to fish (LC50 in mg/l) as predicted by Aster 166.276031
Toxicity to fish (LC50 in mg/l) as predicted by PNN 434.08134
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 2.44
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 2.138
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.06E-001

Human Health data supporting decisions
Underlying data regarding potential for exposure

LPE/IPE/GPE Intermediate Potential for Exposure (HC Simple Exposure Tool)

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment


Underlying data regarding Complex Hazard Assessment