RTECS – Registry of Toxic Effects of Chemical Substances

Number of simultaneous users


Allowable Uses

Access is available on and off campus to Ryerson University students, faculty and staff.
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Available through CCInfo databases, the NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) database contains detailed profiles of over 174,000 chemical substances. Each profile provides relevant toxicological information, hazard classifications, international occupational exposure limits, regulatory information, occupational exposure survey data and references to toxicological reviews. RTECS is compiled by the National Institute for Occupational Safety and Health of the U.S. Department of Health and Human Services.