Substance Identity
CAS Number 64-77-7
Chemical Name Benzenesulfonamide, N-[(butylamino)carbonyl]-4-methyl-
Type of substance Organic
SMILES O=C(NCCCC)NS(=O)(=O)c(ccc(c1)C)c1
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
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 15
MITI probability of biodegradation 0.0398
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 1.003

Underlying data regarding Bioaccumulation

Empirical Log Kow 2.34
Log Kow predicted by KowWin 2.41
Log BAF T2MTL predicted by Gobas 1.17041558581151
Log BCF 5% T2LTL predicted by Gobas 1.0829410842277
Log BCF Max predicted by OASIS 1.94477503632116
Log BCF predicted by BCFWIN 1.102

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 29.37804
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 82.513
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 224.1172
Toxicity to fish (LC50 in mg/l) as predicted by Aster 69.721594
Toxicity to fish (LC50 in mg/l) as predicted by PNN 29.37804
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 17.759
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 5.581
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 8.25E-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