Substance Identity
CAS Number 110-46-3
Chemical Name Nitrous acid, 3-methylbutyl ester
Type of substance Organic
SMILES O=NOCCC(C)C
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)? Yes
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) 0 to 1T

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) 15
MITI probability of biodegradation 0.4855
TOPKAT probability of biodegradation 0
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 2.393

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 2.77
Log BAF T2MTL predicted by Gobas 1.58579262529534
Log BCF 5% T2LTL predicted by Gobas 1.49088932242153
Log BCF Max predicted by OASIS 2.21386219953788
Log BCF predicted by BCFWIN 1.435

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 10.374
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 10.374
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 25.344
Toxicity to fish (LC50 in mg/l) as predicted by Aster 21.330783
Toxicity to fish (LC50 in mg/l) as predicted by PNN 677.24154
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 0.0217
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.845
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 1.64E-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