RTECS® (Registry of Toxic Effects of Chemical Substances)

Critical toxicity data on more than 194,000 chemical substances in the Registry of Toxic Effects of Chemicals, enhanced by CCOHS to ensure your research is always complete.

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$350.00 CAD

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Fast, reliable access to the critical information you need

RTECS® helps you find critical toxicological information with citations on over 194,000 chemical substances from more than 3,800 sources, including:

  • International Journals
  • Textbooks
  • Technical Reports
  • Scientific Proceedings
  • Compendia and more!

Enhanced by CCOHS

We've made it even easier to search and understand the 570,000+ chemical names and synonyms plus the 140,900 unique CAS numbers found in RTECS®.

Also available in French

The English and French language versions of RTECS® can help you find references to:

  • Toxicological Data and Reviews
  • International Workplace Exposure Limits
  • References to US Standards and regulations
  • Analytical Methods
  • Exposure and Hazard Survey Data

RTECS® is ideal for:

  • Toxicologists
  • MSDS Writers
  • Industrial Hygienists
  • Product Safety Specialists
  • Health and Safety Specialists
  • Pharmacologists
  • Environmental Engineers

Further details about the RTECS database are available in the  Comprehensive Guide to the RTECS® Databasepdf document

The Registry of Toxic Effects of Chemical Substances (RTECS®) database was previously maintained by the National Institute for Occupational Safety and Health (NIOSH) and is now licensed through Dassault Systèmes.


What our clients are saying...

“ CCOHS software is easy to implement and helps me greatly in my research...allowing immediate access to all the information I need. And the technical support provided by CCOHS is excellent. ”

Toxicologist/Consultant ToxTemps Inc.

Attention Academic Institutions

RTECS® is also available through our Academic Support Program, a collection of CCOHS OSH databases, specially designed for colleges and universities, or other degree granting institutions.


CANManage provides you with access to a customized collection of MSDSs specific to your workplace.

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