Substance Identity
CAS Number 50-81-7
Chemical Name L-Ascorbic acid
Type of substance Organic
SMILES O1C(=O)C(O)=C(O)C1C(O)CO
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)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? No
Rational for iT QSAR
DSL Quantity range (tonnes/year) >1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Water
Experimental Biodegradation half-life (days) Not Available
Predicted Ultimate degradation half-life (days) 8.67
MITI probability of biodegradation 0.9838
TOPKAT probability of biodegradation 1
EPI Predicted Ozone reaction half-life (days) 1.007
EPI Predicted Atmospheric Oxidation half-life (days) 0.1917

Underlying data regarding Bioaccumulation

Empirical Log Kow -1.85
Log Kow predicted by KowWin -1.88
Log BAF T2MTL predicted by Gobas 0.0000540371955876
Log BCF 5% T2LTL predicted by Gobas 0.0005144646215092
Log BCF Max predicted by OASIS 0.943106429864544
Log BCF predicted by BCFWIN 0.5

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 45528.5922
Toxicity to fish (LC50 in mg/l) as predicted by PNN 45,528.5922
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 567,000
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 5.79E+003

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

AgencyAssessment
HC PMRA/USEPA 4A Lists 4A Inert
OECD No need to Assess List

Underlying data regarding Complex Hazard Assessment