Substance Identity
CAS Number 77-93-0
Chemical Name 1,2,3-Propanetricarboxylic acid, 2-hydroxy-, triethyl ester
Type of substance Organic
SMILES O=C(OCC)C(O)(CC(=O)OCC)CC(=O)OCC
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 0.9889
TOPKAT probability of biodegradation 0.996
EPI Predicted hydrolysis half-life (days) 5.95E+003
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 1.46

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 0.33
Log BAF T2MTL predicted by Gobas 0.0301788598698057
Log BCF 5% T2LTL predicted by Gobas 0.0244981718843084
Log BCF Max predicted by OASIS 1.10626438336973
Log BCF predicted by BCFWIN 0.5

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 27.068988
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 327.2
Toxicity to fish (LC50 in mg/l) as predicted by Aster 27.068988
Toxicity to fish (LC50 in mg/l) as predicted by PNN 84.67954
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 7,262.123
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.54E+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