Scheduled maintenance - Thursday, July 12 at 5:00 PM EDT
We expect this update to take about an hour. Access to this website will be unavailable during this time.
Critical toxicity data on more than 174,000 chemical substances in the Registry of Toxic Effects of Chemicals, enhanced by CCOHS to ensure your research is always complete.
RTECS® helps you find critical toxicological information with citations on over 174,000 chemical substances from more than 2,500 sources, including:
We've made it even easier to search and understand the 400,000+ chemical names and synonyms plus the 134,000 unique CAS numbers found in RTECS®!
Also available in French!
The English and French language versions of RTECS® can help you find references to:
Your annual subscription to RTECS® also includes:
Further details about the RTECS database are available in the Comprehensive Guide to the RTECS® Database
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. ”
DR. STEVEN CRAGG
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.
Need more information on any of our products or services? Contact us.
All prices shown are in Canadian dollars (CAD)
Shipping and handling and applicable taxes are added during Check Out.
Product price and availability are subject to change without notice.