Web of Science includes Science Citation Index, Social Sciences Citation Index, and Arts & Humanities Citation Index. Web of Science provides "Cited Reference Search" and subject searching through both "quick" and "advanced" searches. Our Web of Science subscription includes citations and references for articles in almost 9000 high quality, peer-reviewed journals published from 2002 to the present. Web of Science provides complete bibliographic data, searchable author abstracts, and cited references. Coverage is in the sciences (more than 6000 journals), followed by social sciences (approximately 1800 journals), and arts and humanities (approximately 1100 journals). For impact factor information about specific journals, users are directed to the index "Journal Citation Reports."

In addition to the National Academy of Sciences, this site includes information about the National Academy of Engineering, the Institute of Medicine, and the National Research Council. Overall, the site has scientific information on topics including the physical sciences, life and earth sciences, medicine and health, education and science and technology policy.
From http://www.nas.edu/

Use this database to get information on chemical health and safety data received by EPA and EPA's assessments and regulatory actions for specific chemicals under the Toxic Substances Control Act (TSCA).