Substance Identity
CAS Number 28348-53-0
Chemical Name Benzenesulfonic acid, (1-methylethyl)-, sodium salt
Type of substance Organic
SMILES OS(=O)(=O)c1ccc(cc1)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)? 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 0.1424
TOPKAT probability of biodegradation 0.008
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 3.277

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin -1.5
Log BAF T2MTL predicted by Gobas 0.0000540371955876
Log BCF 5% T2LTL predicted by Gobas 0.0005144646215092
Log BCF Max predicted by OASIS 0.951414074822463
Log BCF predicted by BCFWIN 0.5

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 315.61271
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 60,114.805
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 13,392.585
Toxicity to fish (LC50 in mg/l) as predicted by Aster 2,073.317875
Toxicity to fish (LC50 in mg/l) as predicted by PNN 315.61271
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 8,298.344
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 1,389.253
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 6.01E+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