Substance Identity
CAS Number 6790-58-5
Chemical Name Naphtho[2,1-b]furan, dodecahydro-3a,6,6,9a-tetramethyl-, [3aR-(3aà,5a ,9aà,9b )]-
Type of substance Organic
SMILES O(C(C(C(C(C(CC1)(C)C)C2)(C1)C)C3)(C2)C)C3
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)? Yes
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-Soil
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 60
MITI probability of biodegradation 0.15
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.3835

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 4.76
Log BAF T2MTL predicted by Gobas 3.8663041102543
Log BCF 5% T2LTL predicted by Gobas 3.45062466839924
Log BCF Max predicted by OASIS 4.0304461148044
Log BCF predicted by BCFWIN 2.963

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 1.4334
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 0.446
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 1.4334
Toxicity to fish (LC50 in mg/l) as predicted by Aster 1.696827
Toxicity to fish (LC50 in mg/l) as predicted by PNN 7.95115
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 13.1
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.018
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 0.099
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 4.46E-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