Reaxys

Reaxys is a chemistry database that provides information about millions of chemical structures, reactions, and properties cited from journal articles, patents, and other publications, including over 125 million documents and 48 million patents. Reaxys includes substance property and reaction data, synthesis options, experimental procedures, patent information, and citations. This chemistry, medicinal chemistry, and pharmacology data is ideal for researchers who are investigating organic synthesis or searching for data on physical, chemical, spectral, bioactivity, or toxicological properties of chemical compounds.

In addition to textual searching, Reaxys offers the ability to search by drawing or importing a file of a chemical structure. It also offers Retrosynthesis and Conditions navigator options.