Substance Identity
CAS Number 83-34-1
Chemical Name 1H-Indole, 3-methyl-
Type of substance Organic
SMILES c1ccc2c(C)cnc2c1
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 Experiment
DSL Quantity range (tonnes/year) >1T to 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) 15
MITI probability of biodegradation 0.4126
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.05344

Underlying data regarding Bioaccumulation

Empirical Log Kow 2.6
Log Kow predicted by KowWin 2.6
Log BAF T2MTL predicted by Gobas 1.41929618469611
Log BCF 5% T2LTL predicted by Gobas 1.32727437231869
Log BCF Max predicted by OASIS 1.99316597597069
Log BCF predicted by BCFWIN 1.302

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 8.84
Experimental result iT (mg/l) 8.84
Test species iT (Latin) Pimephales promelas
Test species iT (Common) Fathead minnow
Final EndPoint iT LC50
Exposure duration iT (hours) 96
Reference iT Center for Lake Superior Environmental Stud., Univ.of Wisconsin-Superior, Superior, WI I:332
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 26.538
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 21.0066
Toxicity to fish (LC50 in mg/l) as predicted by Aster 67.276461
Toxicity to fish (LC50 in mg/l) as predicted by PNN 44.06839
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 4.987
Chronic toxicity to daphnia or algae (EC50 in mg/l) as predicted by Ecosar v0.99g 1.976
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 8.85E+000

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