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From the National Library of Medicine. Databases and other resources designed to help you search for information by chemical name or structure.
NIST Chemistry WebBook
Provides access to chemical and physical property data for chemical species. The data provided in the site are from collections maintained by the NIST Standard Reference Data Program and outside contributors.
Interactive PhysProp Database Demo
Online interactive demo retrieves data for 25,000 compounds. Requires the use of a CAS number.
Provides information on the biological activities of small molecules.
NIST virtual library
Provides links to a variety of online science resources, including chemistry topics.
Organic Chemistry Resources Worldwide
Collects and independently annotates useful organic chemistry sites.
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