National Toxicology Program

(CAS# 91-20-3)

• Primary Uses or Exposures: Used as an intermediate in the synthesis of many industrial chemicals, and has been used as an ingredient in some moth repellants and toilet bowl deodorants.
• Nominated by: NIEHS
• Basis for Nomination: NTP Bioassay (TR-500 and TR-410) reporting clear evidence of carcinogenicity in rats and some evidence of carcinogenicity in mice
• Current Status: Listed in the RoC as reasonably anticipated to be a human carcinogen since the 11th RoC (2004)