Substance Identity
CAS Number 74-98-6
Chemical Name Propane
Type of substance Organic
SMILES C(C)C
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? Yes
Meets Human Health Categorization Criteria? Yes
Meets Environmental Criteria for Categorization? No
Persistent (P)? Yes
Rational for P Experiment
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 0.8483
TOPKAT probability of biodegradation 1
Experimental Ozone Reaction half-life (days) 1,685,049.01960784
Reference (ozone reaction) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Ozone reaction half-life (days) 999
Experimental Atmospheric Oxidation half-life (days) 9.29951690821256
Reference (oxidation) ATKINSON,R.; KINETICS AND MECHANISMS OF THE GAS-PHASE REACTIONS OF THE HYDROXYL RADICAL WITH ORGANIC COMPOUNDS.; JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA. MONOGRAPH NO. 1.; 1989
EPI Predicted Atmospheric Oxidation half-life (days) 8.432

Underlying data regarding Bioaccumulation

Empirical Log Kow 2.36
Log Kow predicted by KowWin 1.81
Log BAF T2MTL predicted by Gobas 1.18925766264061
Log BCF 5% T2LTL predicted by Gobas 1.10140303442794
Log BCF Max predicted by OASIS 1.59230313065172
Log BCF predicted by BCFWIN 1.117

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 84
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 84
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 49.319
Toxicity to fish (LC50 in mg/l) as predicted by Aster 18.010754
Toxicity to fish (LC50 in mg/l) as predicted by PNN 11.82764
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 381.9
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 16.29
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 2.462
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 4.93E+001

Human Health data supporting decisions
Underlying data regarding potential for exposure

LPE/IPE/GPE Greatest Potential for Exposure (HC Simple Exposure Tool)

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment


Underlying data regarding Complex Hazard Assessment