1. About

> Distributed Structure-Searchable Toxicity (DSSTox) Database Network is a project of EPA’s National Center for Computational Toxicology, helping to build a public data foundation for improved structure-activity and predictive toxicology capabilities. The DSSTox website provides a public forum for publishing downloadable, structure-searchable, standardized chemical structure files associated with toxicity data.

1. Downloads

Several different datasets available from:

• [http://www.epa.gov/ncct/dsstox/DataFiles.html](http://www.epa.gov/ncct/dsstox/DataFiles.html)

1. Format

Files are in [Structure Data Format (SDF)](http://www.epa.gov/ncct/dsstox/MoreonSDF.html).

1. Openness

Not clear. From US Government so at least some of the material may be in the public domain.

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