Substance Identity
CAS Number 32536-52-0
Chemical Name Benzene, 1,1 -oxybis-, octabromo deriv.
Type of substance Organic
SMILES Brc1c(c(c(c(c1Br)Br)Br)Br)Oc2cc(c(cc2Br)Br)Br
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? Yes
Meets Human Health Categorization Criteria? No
Meets Environmental Criteria for Categorization? Yes
Persistent (P)? Yes
Rational for P QSAR
Bioaccumulative (B)? No
Rational for B Category
Inherently Toxic to Aquatic Organisms (iT)? Yes
Rational for iT Experiment
DSL Quantity range (tonnes/year) >1000T
Basis for Environment Categorization (PiT, BiT, PBiT) if categorized? PiT

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Soil
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 182
MITI probability of biodegradation 0.0009
TOPKAT probability of biodegradation 0
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 93.62

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 10.33
Log BAF T2MTL predicted by Gobas 4.71195772280195
Log BCF 5% T2LTL predicted by Gobas 2.06418097414792
Log BCF Max predicted by OASIS 2.00337956840589
Log BCF predicted by BCFWIN 0.5

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.0017
Experimental result iT (mg/l) 0.0017
Reference iT CMABFRIP (Chemical Manufacturers Association Brominated Flame Retardant Industry Panel). 1997d. Octabromodiphenyl oxide (OBDPO): A flow-through life-cycle toxicity test with the cladoceran (Daphnia magna). Final report. Project No. 439A-104, Wildlife Inte

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

Previous assessment through Unassigned

Underlying data regarding Simple Hazard Assessment

AgencyAssessment
EC Developmental - Category 2
EC Reproductive - Category 2

Underlying data regarding Complex Hazard Assessment