Substance Identity
CAS Number 37609-25-9
Chemical Name 5-Cyclohexadecen-1-one
Type of substance Organic
SMILES O=C(CCCCCCCCCCC=CCC1)C1
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)? No
Rational for P QSAR
Bioaccumulative (B)? Yes
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? Yes
Rational for iT QSAR
DSL Quantity range (tonnes/year) >1T to 1000T
Basis for Environment Categorization (PiT, BiT, PBiT) if categorized? BiT

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) 37.5
MITI probability of biodegradation 0.4174
TOPKAT probability of biodegradation 0
EPI Predicted Ozone reaction half-life (days) 0.0573
EPI Predicted Atmospheric Oxidation half-life (days) 0.1349

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 5.82
Log BAF T2MTL predicted by Gobas 5.46859458996836
Log BCF 5% T2LTL predicted by Gobas 4.3531859878737
Log BCF Max predicted by OASIS 4.71928175044553
Log BCF predicted by BCFWIN 3.783

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.049
Toxicity to fish (LC50 in mg/l) as predicted by Aster 1.631436
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 0.049
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 0.017
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 1.49E-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