Description: TOXCAST_PhaseI corresponds to the ph1v1 subset of EPA’s ToxCast Screening Library (TOXCAST), consisting of 310 unique chemicals, mostly pesticidal actives for which in vivo guideline study data were available, that were screened in the earliest, Phase I of the ToxCast program. At the conclusion of Phase I screening (public data release, Jan, 2010), the majority of the ph1v1 inventory chemicals were reprocured and moved to expanded Phase II testing, with the exception of a subset of 17 chemicals that were retired from further screening due to solubility and degradation issues (see TOXCAST_ph1v2 for the reprocured subset). For more details, see TOXCAST

    Number of Chemicals: 310