Toxic substances list: benzidine and benzidine dihydrochloride
Benzidine has been used primarily as an intermediate in the manufacture of dyes and pigments. It is not produced in Canada, and although it may have been imported in small amounts between 1980 and 1987, there no longer appears to be any commercial activity in Canada involving this substance. However, there are limited essential applications of benzidine related to analytical procedures in the health care sector.
CAS (Chemical Abstracts Service) registry number: 92-87-5 and 531-85-1
Risk assessment
- Priority Substances List Assessment Report
- Order Adding Toxic Substances to Schedule 1 to the Canadian Environmental Protection Act, 1999
- CEPA 1999 Schedule 1 - List of Toxic Substances - This substance has been added to the List of Toxic Substances. It is entering or may enter the environment in a quantity or concentration or under conditions that:
c) constitute or may constitute a danger in Canada to human life or health. - Full life-cycle management of the substance (Track 2) under the Toxic Substances Management Policy
Sources
This substance is entering the environment from the following sources:
Strategic options report
Click on the following link to view strategies and actions recommended to manage risks associated with the substance:
- Strategic Options for the management of toxic substances: Benzidine and 3,3-Dichlorobenzidine
Risk management tools
Tools developed to manage risks associated with the substance:
Consultation
Consultation (past and present) on the substance:
Other information
Contact
Chemicals Management Division
Environment and Climate Change Canada
Gatineau, QC K1A 0H3
E-mail: interdiction-prohibition@ec.gc.ca
Substances Management Information Line:
Telephone: 1-800-567-1999 (in Canada) or 819-938-3232