Thermodex is the creation of the Library of the University of Texas at Austin. The database is searchable by compound name, CAS Registry Number, molecular formula and NMR or IR peaks. The database is free to the public, but users are asked to download no more than 50 spectra per day without specific permission of the site owners. This site, based at the University of Potsdam, allows the user to plug in IR peaks in wavenumbers, proton NMR peaks or mass spectral peaks and retrieve a list of the functional groups which would generate those peaks. It also has a 13C NMR database, searchable by peak or chemical name fragment, which can retrieve structures, spectra, peaks and peak assignments.
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To Table of Contents Materials Safety Data Sheets Sites Materials Safety Data Sheets contain basic safety information on the storage, handling and use of chemicals. Manufacturers are required to provide them on request for any chemical products they sell. There are a number of Internet sites which provide electronic collections of MSDS's for quick reference. This web site contains a list of MSDS web sites from a variety of sources. This site from Vermont Safety Resources on the Internet contains a searchable collection of MSDS from a variety of chemical manufacturers.