1. Home
  2. Library
  3. Chemicals
  4. Azobenzene

Azobenzene

CAS Number

103-33-3

Synonym

Azobenzide; Azobenzol; Azobisbenzene; Azofume; Azodibenzeneazofume; Benzeneazobenzene; Benzofume; Diphenyldiimide; Diphenyldiazene; Diphenyl diimide; 1,2-Diphenyldiazene; Diazobenzene; NCI-C02926

Occurrence/Use

Chemical intermediate in production of dyes, rubber accelerators, benzidine, insecticides, and pyrazolone derivatives. Formerly used as greenhouse fumigant against insects and mites.

Azobenzene

Cancer Potency Information

Inhalation Unit Risk (μg/cubic meter)-1: 
3.1 E-5
Inhalation Slope Factor (mg/kg-day)-1: 
1.1 E-1
Oral Slope Factor (mg/kg-day)-1: 
1.1 E-1
Comments/References: 

US EPA 1988. IRIS Database: Azobenzene.

 

Note: This value was used as the basis of the No Significant Risk Level that was adopted for the purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65).

Proposition 65

Chemical Status

Cancer: 
Currently listed

Cancer

Listed as causing: 
Cancer
Date of Listing: 
01/01/1990
Basis for Listing: 
Authoritative Bodies-US Environmental Protection Agency

Safe Harbor Levels

Cancer
No Significant Risk Level (NSRL): 
6 µg/day