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RTECS - Registry of Toxic Effects of Chemical SubstancesAnyone can use
Toxic effects data on some 140,000 chemicals. Retrieve data on skin/eye irritation, carcinogenicity, mutagenicity and reproductive consequences on over 140,000 chemicals. From the National Institute for Occupational Safety and Health (NIOSH). Formerly available free as part of TOXNET, this file is now only available via fee-based, expert search [more]