ToxCast™ Chemicals
ToxCast™ Phases I and II are testing a combined total of about 2,000 chemicals. Chemical nominations came from within EPA, from other U.S. agencies (NTP, NIEHS, FDA), from international organizations such as OECD and from other stakeholder groups. There are 273 unique chemicals in ToxCast PhaseI_v2 and 767 unique chemicals in ToxCast™ Phase II. ToxCast is also screening an additional 880 chemicals for potential endocrine disruption (called e1K chemicals). More detailed information about the ToxCast chemicals can be found through the sources below.
- ToxCast™ Phase I Chemical List
- ToxCast™ Phase I QCd Data (QC notes)
- ToxCast™ Phase II List
- Listing of ToxCast chemicals with available data are available via the ToxCast database.
- For access to downloadable files containing the most accurate and up-to-date listing of chemical structures and identifiers for the full ToxCast inventory, please visit the EPA DSSTox website