Substance Identity
CAS Number 62-73-7
Chemical Name Phosphoric acid, 2,2-dichloroethenyl dimethyl ester
Type of substance Organic
SMILES O=P(OC)(OC)OC=C(Cl)Cl
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 Experiment
Inherently Toxic to Aquatic Organisms (iT)? Yes
Rational for iT Experiment
DSL Quantity range (tonnes/year) 0 to 1T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Air-Water
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 37.5
MITI probability of biodegradation 0.0192
TOPKAT probability of biodegradation 0
EPI Predicted Ozone reaction half-life (days) 320.2
EPI Predicted Atmospheric Oxidation half-life (days) 1.137

Underlying data regarding Bioaccumulation

Empirical Log Kow 1.47
Reference (Log Kow) KAWAMOTO,K&URANO,K 1989
Log Kow predicted by KowWin 0.6
Log BAF T2MTL predicted by Gobas 0.0778857051961296
Log BCF 5% T2LTL predicted by Gobas 0.0793055543641416
Log BCF Max predicted by OASIS 1.16027354980178
Log BCF predicted by BCFWIN -0.348
Experimental BCF (log) -0.3
Reason for pivotal value Only Vertebrate BCF
Test species BCF/BAF (Latin) Cyprinus carpio
Test species BCF/BAF (Common) Common carp
Mean water concentration (ug/l) 1
Mean water concentration (comment) Below water solubility by a factor of 5
Water concentration: Measured/Nominal/Uncertain Measured
RadioLabel No
Exposure duration (days) 7
Exposure duration (comment) Sufficient exposure duration for 80% steady state
Exposure type Flow-through
Mean temperature (deg. Celcius) 23
Exposure route Water (but fed)
Exposure media Fresh Water
Tissue analysed Whole body
Reference (BAF/BCF) Tsuda, T., S. Aoki, M. Kojima, and T. Fujita. 1993. Accumulation and Excretion of Organophosphorous Pesticides by Carp Cyprinus carpio. Comp.Biochem.Physiol.C 104(2):275-278

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 6e-005
Experimental result iT (mg/l) 0.00006
Exposure duration iT (hours) 24
Robust Study Summary iT
62737-AT-EC50-I-dapmag.doc
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 187.65
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 9,623.3369
Toxicity to fish (LC50 in mg/l) as predicted by PNN 2.57134
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 3,298.744
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 3.39E+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

AgencyAssessment
IARC Carcinogenicity - Group 2B
USEPA 1986 Carcinogenicity - Groups B1 and B2

Underlying data regarding Complex Hazard Assessment