Access to the data collections of the National Institute of Standards and Technology, including thermochemical data,reaction thermochemistry data, IR spectra, mass spectra, and more. A comprehensive source for chemical and physical property data for chemical compounds.
NIST's Chemistry areas of research include: chemical characterization of materials, process metrology, chemical and biochemical sensing, nanotechnology, healthcare measurements, environmental measurements, physical property data, chemical and biochemical data, bio-molecules and materials, DNA technologies, and international measurement standards.
PubChem provides information on the biological activities of small molecules. It is a component of NIH's Molecular Libraries Roadmap Initiative.
PubChem consists of three databases: Compound, Substance and BioAssay. Compound and Substance database records provide basic physical data, attributes important in drug discovery, and structures; Substance describes samples containing one or more compounds, whereas Compound describes specific molecules. BioAssay provides datasets of compound bioactivity against various targets; to date, nearly all datasets are cancer screens from the National Cancer Institute.
Arranged in ten categories, this site offers seminal papers in the history of chemistry; links to biographical sketches and/or portraits of the authors. All papers are in English. Includes an extensive Glossary of Archaic Chemical Terms.