ChemSpider is a free chemical structure database providing fast text and structure search access to over 57 million structures from hundreds of data sources. From the Royal Society of Chemistry
In beta. Website for sharing spectral data in a number for formats. You are free to use the data posted however you would like, and you can also contribute to the database!
This resource is powered by the Protein Data Bank archive-information about the 3D shapes of proteins, nucleic acids, and complex assemblies that helps students and researchers understand all aspects of biomedicine and agriculture, from protein synthesis to health and disease.
A database from Japan's National Institute of Advanced Industrial Science and Technology. You can search for substances by name, formula, or CAS number and can get data on many different spectra.
UniProt's mission is to provide the scientific community with a comprehensive, high-quality and freely accessible resource of protein sequence and functional information.
Science.gov searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results.
The Technical Report Archive & Image Library (TRAIL) identifies, acquires, catalogs, digitizes and provides unrestricted access to U.S. government agency technical reports.