Substance Identity
CAS Number 542-92-7
Chemical Name 1,3-Cyclopentadiene
Type of substance Organic
SMILES C(=CC=C1)C1
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 Category
Bioaccumulative (B)? No
Rational for B Category
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT Category
DSL Quantity range (tonnes/year) >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) 15
MITI probability of biodegradation 0.7247
TOPKAT probability of biodegradation 0.998
EPI Predicted Ozone reaction half-life (days) 0.03581
EPI Predicted Atmospheric Oxidation half-life (days) 0.07501

Underlying data regarding Bioaccumulation

Log Kow predicted by KowWin 2.25
Log BAF T2MTL predicted by Gobas 1.08638306219677
Log BCF 5% T2LTL predicted by Gobas 1.00072279794882
Log BCF Max predicted by OASIS 1.84481143989265
Log BCF predicted by BCFWIN 1.036

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 37.5
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 37.5
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 28.525
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 61.1187
Toxicity to fish (LC50 in mg/l) as predicted by Aster 62.888785
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 42.1
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 6.882
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 1.779
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.85E+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