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- Search Scope
The search by Keyword allows you to enter any keyword or string of keywords to locate information on that topic. The search by Chemical Name or CAS Registry Number (CASRN) allows you to enter any chemical name or CASRN and retrieve a list of IRIS substances that match or are a synonym for that chemical name or CASRN.
Searching IRIS Summary/Toxicological Review will retrieve a list of IRIS substances and links to the available IRIS Summary or Toxicological Review. Searching the Entire IRIS Website will retrieve a list of relevant Web site pages and documents.