Substance Identity
CAS Number 135-19-3
Chemical Name 2-Naphthalenol
Type of substance Organic
SMILES Oc(ccc(c1ccc2)c2)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 QSAR
Bioaccumulative (B)? No
Rational for B QSAR
Inherently Toxic to Aquatic Organisms (iT)? Yes
Rational for iT Experiment
DSL Quantity range (tonnes/year) >1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Water-Soil
Experimental Biodegradation half-life (days) Not Available
Experimental Biodegradation result (%) 68
Reference (biodegradation result) CHEMICALS INSPECTION AND TESTING INSTITUTE.; BIODEGRADATION AND BIOACCUMULATION DATA OF EXISTING CHEMICALS BASED ON THE CSCL JAPAN.; JAPAN CHEMICAL INDUSTRY ECOLOGY - TOXICOLOGY AND INFORMATION CENTER.ISBN 4-89074-101-1.; 1992
Robust Study Summary (biodegradation result)
135193.doc
MITI book - P data.doc
Predicted Ultimate degradation half-life (days) 15
MITI probability of biodegradation 0.4238
TOPKAT probability of biodegradation 0.983
EPI Predicted Ozone reaction half-life (days) 999
Experimental Atmospheric Oxidation half-life (days) 0.0629084967320261
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) 0.05344

Underlying data regarding Bioaccumulation

Empirical Log Kow 2.7
Log Kow predicted by KowWin 2.69
Log BAF T2MTL predicted by Gobas 1.51692959337187
Log BCF 5% T2LTL predicted by Gobas 1.42323628498224
Log BCF Max predicted by OASIS 2.14915256945801
Log BCF predicted by BCFWIN 1.379

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 0.85
Experimental result iT (mg/l) 0.85
Test species iT (Latin) Gammarus minus
Test species iT (Common) Scud
Final EndPoint iT LC50
Exposure duration iT (hours) 48
Reference iT Trans.Am.Fish.Soc. 113(1):74-85
Robust Study Summary iT
135193-AT-LC50-I-phygyr.rtf
135193-AT-LC50-I-chiten.rtf
135193-AT-LC50-F-salgail.rtf
135193-AT-LC50-I-DAPMAG.rtf
135193-AT-EC50-O-nitpal.rtf
135193-AT-LC50-F-pimpro.rtf
135193-AT-LC50-I-gammin.rtf
135193-AT-EC50-O-selecap.rtf
135193-AT-LC50-F-micsal.rtf
Toxicity to fathead minnow (LC50 in mg/l) as predicted by Topkat v6.1 19.9
Toxicity to fish (LC50 in mg/l) as predicted by Ecosar v0.99g 7.959
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 33.6393
Toxicity to fish (LC50 in mg/l) as predicted by Aster 2.716774
Toxicity to fish (LC50 in mg/l) as predicted by PNN 6.07784
Toxicity to daphnia (EC50 in mg/l) as predicted by Topkat v6.1 4.2
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 17.548
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 2.40E-001

Human Health data supporting decisions
Underlying data regarding potential for exposure

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

Underlying data regarding Previous Assessments

Underlying data regarding Simple Hazard Assessment


Underlying data regarding Complex Hazard Assessment