Substance Identity
CAS Number 25551-13-7
Chemical Name Benzene, trimethyl-
Type of substance Organic
SMILES Cc1cc(cc(c1)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 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 Air-Soil
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 37.5
MITI probability of biodegradation 0.5837
TOPKAT probability of biodegradation 0.028
Experimental Ozone Reaction half-life (days) 5,208.33333333333
Reference (ozone reaction) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Ozone reaction half-life (days) 999
Experimental Atmospheric Oxidation half-life (days) 0.185990338164251
Reference (oxidation) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Atmospheric Oxidation half-life (days) 0.3047

Underlying data regarding Bioaccumulation

Empirical Log Kow 3.42
Log Kow predicted by KowWin 3.63
Log BAF T2MTL predicted by Gobas 2.24397149191117
Log BCF 5% T2LTL predicted by Gobas 2.12982613421078
Log BCF Max predicted by OASIS 2.97277304300557
Log BCF predicted by BCFWIN 1.933

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 2.616
Robust Study Summary iT
25551137-AT-LC50-I-palpug.doc
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 2.616
Toxicity to fish (LC50 in mg/l) as predicted by Aster 3.274307
Toxicity to fish (LC50 in mg/l) as predicted by PNN 11.34222
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 4.8
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.236
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 0.328
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.62E+000

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