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Aggregated Computational Toxicology Online Resource

Published by U.S. EPA Office of Research and Development (ORD) - National Center for Computational Toxicology (NCCT) | U.S. Environmental Protection Agency | Catalog Last Checked: May 01, 2026 at 06:07 PM | Dataset Last Updated: January 01, 2014
Aggregated Computational Toxicology Online Resource (AcTOR) is EPA's online aggregator of all the public sources of chemical toxicity data. ACToR aggregates data from over 1,000 public sources on over 500,000 chemicals and is searchable by chemical name, other identifiers and by chemical structure. It can be used to query a specific chemical and find all publicly available hazard, exposure and risk assessment data. It also provides access to EPA's ToxCast, ToxRefDB, DSSTox, Dashboard and DSSTox data.

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