Benzidine-, o-Toluidine-, o-Dianisidine-based dyes Test Results
44 FR 70664; December 7, 1979
Decision Not to Test (DNT)
46 FR 55004; November 5, 1981
Project Manager: C. McCormack, H. Colbert, F. Benenati
Section Chief: J. Schaeffer
Status: Closed. DNT based on ongoing testing by government and industry. Testing has since been completed. Test results have been forwarded to the Risk Assessment Division for review and disposition.
Identification of Chemicals
Benzidine and its congeners o-toluidine and o-dianisidine constitute a family of synthetic organic chemicals with a biphenyl moiety. These substances are used in the synthesis of dyes, referred to collectively as the benzidine congener dyes.
Results of Testing Table