Elsevier Reaxys is web-based interface allowing searches over Beilstein, Gmelin and the Patent Chemistry Database, all in one unified database. Reaxys integrates searches of organic, inorganic and metalorganic compounds, their reactions and property data with synthesis planning.
Access for ETH members
Coverage (status end of October 2011)
- 20 million compounds (18.2 million with carbon atoms)
- 31 million reactions
- 18.6 million single-step
- 12.4 million multi-step
- 5.5 million half reactions
- 4.6 million literature references
Beilstein contains data on organic compounds (structures, physical data, chemical data (reactions)) and associated literature references since 1771. Synthetic polymers are only partially covered sind 1999. The database covers the complete information of the printed Beilstein-Handbook as well as the recent electronic information. The time required until the primary literature is indexed is about one year. Beilstein contains the most comprehensive collection of references to spectral data (but not the spectra themselves), thermodynamic, pharmacological, environmental and toxicological data and information on natural compound. Therefore, it is also very important for physical chemist, physicists, chemical engineers and pharmaceutical scientists.
Coverage as of end of 2010 (from CrossFire Beilstein):
- About 11.8 million organic compounds
- About 23.3 million organic reactions
- About 2.3 million literature references (1771-current)
- Patents covered until 1980
Gmelin contains structures, physical and chemical data on about 2.8 million organometallic and inorganic compounds (about 1.4 million coordination compounds, about 120'000 alloys, glasses and ceramics, doped semiconductors, inorganic polymers, minerals), about 2.1 million reactions and about 1.5 million literature references since 1772 (coverage as of end of 2010, from CrossFire Gmelin).
The Gmelin database does not provide the complete information of the printed Gmelin handbook:
- many comprehensive records just provide a reference to the printed handbook
- a lot of information of the 512 handbook volumes that were published 1976-1997 was not included in the database
The Patent Chemistry Database contains about 570'000 patents in English language (US since 1976, WO, EP since1978) on about 65.1 million compounds and about 4.9 million reactions including detailed (preparation) instructions. Markush-type structures and reactionen are displayed for patents since 2003. All records provide links either to esp@cenet or USPTO patent documents.