Chemistry

"Avogadro is an advanced molecule editor and visualizer designed for cross-platform use in computational chemistry, molecular modeling, bioinformatics, materials science, and related areas."

"A compilation of kinetics data on gas-phase reactions"

"This site provides thermochemical, thermophysical, and ion energetics data compiled by NIST under the Standard Reference Data Program."

"A compilation of kinetics data on solution-phase reactions"

"nmrshiftdb2 is a NMR database (web database) for organic structures and their nuclear magnetic resonance (nmr) spectra. It allows for spectrum prediction (13C, 1H and other nuclei) as well as for searching spectra, structures and other properties. Last not least, it features peer-reviewed submission of datasets by its users."

"PubChem, released in 2004, provides information on the biological activities of small molecules...also provides a fast chemical structure similarity search tool."

Search for products and compounds by keyword

SDBS is an integrated spectral database system for organic compounds

ChemSpider is a free chemical structure database providing fast text and structure search access to over 38 million structures from hundreds of data sources.

Chemspy.com is the chemistry search, news and views and chemistry videos website of science journalist David Bradley. It's available free of charge and without login.

Free registration required. Members have access to fulltext articles from such publishers as Wiley, Elsevier and Springer.

This website catalogs chemicals' supplier information. Users can search either by drawing the structures using the 'Building Blocks' tool or by name.

The Organic Chemistry Portal offers an overview of recent topics, interesting reactions, and information on important chemicals for organic chemists.

Data from NIST (National Institute of Standards and Technology)

Spectral data for 121 diatomic molecules