Substance Identity
CAS Number 90459-19-1
Chemical Name 2-Naphthalenesulfonic acid, 6-amino-3-[(4-aminophenyl)azo]-4-hydroxy-, diazotized, coupled with 6-amino-4-hydroxy-2-naphthalenesulfonic acid and 5(or 8)-amino-2-naphthalenesulfonic acid, potassium sodium salts
Type of substance UVCB-organic-metal salt
Moiety of concern organic
Categorization Results

Meets Government of Canada Categorization Criteria? No
Meets Human Health Categorization Criteria? No
Meets Environmental Criteria for Categorization? Uncertain
Persistent (P)? Yes
Bioaccumulative (B)? Yes
Inherently Toxic to Aquatic Organisms (iT)? Uncertain
DSL Quantity range (tonnes/year) >1T to 1000T

Ecological data supporting decisions

Underlying data regarding persistence

Media of concern leading to Categorization Not Applicable
Experimental Biodegradation half-life (days) Not Available
Comment (persistency) moiety of concern is P

Underlying data regarding Bioaccumulation

Comment (BAF/BCF) Uncertain if moiety of concern is B

Underlying data regarding inherent toxicity to aquatic organisms

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