CAS RN:108-88-3

Carcinogenicity Evidence

Evaluation: There is inadequate evidence for the carcinogenicity of toluene in humans. There is evidence suggesting lack of carcinogenicity of toluene in experimental animals. Overall evaluation: Toluene is not classifiable as to its carcinogenicity to humans (Group 3).
Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005), there is inadequate information to assess the carcinogenic potential of toluene because studies of humans chronically exposed to toluene are inconclusive, toluene was not carcinogenic in adequate inhalation cancer bioassays of rats and mice exposed for life, and increased incidences of mammary cancer and leukemia were reported in a lifetime rat oral bioassay at a dose level of 500 mg/kg-day but not at 800 mg/kg-day.
A4; Not classifiable as a human carcinogen.
Find more information on this substance at: Hazardous Substances Data Bank , TOXNET , PubMed