Chemistry Resources

From the National Center for Biotechnology Information, searchable information on the biological activities of substances, compounds, and small molecules, includes chemical structure similarity search tool.

Chemistry research database. Search for substances, reactions, patents, and journal articles.

Worldwide dissertations and theses from 1861 to the present, with full text for most dissertations added since 1997 and strong full text coverage for older graduate works.

Searches over 60 databases and 2200 websites from 15 federal science-related agencies.