ChemSpider, from the Royal Society of Chemistry, is a free-to-access collection of compound data drawn from across the web. It aggregates chemical structures and their associated information into a single searchable repository and builds on the collected sources by adding additional properties, related information and links back to original data sources.
Reaxys searches an extensive collection of organic, organo-metallic, and inorganic chemistry data by structure, substructure, reaction, text, and property data. Reaxys is based on the CrossFire Beilstein, CrossFire Gmelin and Patent Chemistry databases and draws data from around 3800 journals and patents from various patent offices. The content in Reaxys comes from the following sources:
- The Beilstein Handbook
- The Gmelin Handbook
- Selected literature from 1772 to today
- Organic chemistry and Life Science patents from US (since 1976), World and European (since 1978) patent publications.
For help and support please contact Adrian Whitwood in the Chemistry Department.