Substance Identity
CAS Number 1330-16-1
Chemical Name Bicyclo[3.1.1]heptane, 2,6,6-trimethyl-, didehydro deriv.
Type of substance Organic
SMILES C1(C)(C)C2C(C)C=CC1C2
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 Air
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 37.5
MITI probability of biodegradation 0.2602
TOPKAT probability of biodegradation 0.44
EPI Predicted Ozone reaction half-life (days) 0.0573
EPI Predicted Atmospheric Oxidation half-life (days) 0.1739

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 4.14
Log BAF T2MTL predicted by Gobas 3.04141809677187
Log BCF 5% T2LTL predicted by Gobas 2.84400512738817
Log BCF Max predicted by OASIS 3.45928189929975
Log BCF predicted by BCFWIN 2.487

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 1.7
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 1.7
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 0.983
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 1.2495
Toxicity to fish (LC50 in mg/l) as predicted by Aster 1.750088
Toxicity to fish (LC50 in mg/l) as predicted by PNN 15.13723
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 110.1
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.062
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 0.16
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 9.83E-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