Substance Identity
CAS Number 38304-91-5
Chemical Name 2,4-Pyrimidinediamine, 6-(1-piperidinyl)-, 3-oxide
Type of substance Organic
SMILES C1CCCCN1c2nc(N)n(=O)c(N)c2
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) Unknown Quantity

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) 60
MITI probability of biodegradation 0.0041
EPI Predicted Ozone reaction half-life (days) 999
EPI Predicted Atmospheric Oxidation half-life (days) 0.04741

Underlying data regarding Bioaccumulation

Empirical Log Kow 1.24
Log Kow predicted by KowWin 1.35
Log BAF T2MTL predicted by Gobas 0.308420298634305
Log BCF 5% T2LTL predicted by Gobas 0.263688968256856
Log BCF Max predicted by OASIS 1.38600764049622
Log BCF predicted by BCFWIN 0.255

Underlying data regarding inherent toxicity to aquatic organisms

Pivotal value for iT (mg/l) 1212.4325
Toxicity to fish (LC50 in mg/l) as predicted by Oasis Forecast M v1.10 1,212.4325
Toxicity to fish (LC50 in mg/l) as predicted by PNN 47,183.04454
Toxicity to fish, daphnia, algae or mysid shrimp (EC50 or LC50 in mg/l) as predicted by Ecosar v0.99g 1,034.716
Toxicity to fish (LC50 in mg/l) as predicted by Neutral Organics QSAR in Ecosar v0.99g 6.33E+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