Beilstein database
Encyclopedia
The Beilstein database is the largest database
Chemical database
A chemical database is a database specifically designed to store chemical information. This information is about chemical and crystal structures, spectra, reactions and syntheses, and thermophysical data.- Chemical structures :...

 in the field of organic chemistry
Organic chemistry
Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, composition, reactions, and preparation of carbon-based compounds, hydrocarbons, and their derivatives...

, in which compounds are uniquely identified by their Beilstein Registry Number
Beilstein Registry Number
The Beilstein Registry Number is a way of identifying compounds similar to the CAS registry number. It is the unique identifier for compounds in the Beilstein database....

. The database covers the scientific literature from 1771 to the present and contains experimentally validated information on millions of chemical reaction
Chemical reaction
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another. Chemical reactions can be either spontaneous, requiring no input of energy, or non-spontaneous, typically following the input of some type of energy, such as heat, light or electricity...

s and substances
Chemical substance
In chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e. without breaking chemical bonds. They can be solids, liquids or gases.Chemical substances are...

 from original scientific publications. The electronic database was originally created from Beilstein's Handbook of Organic Chemistry, founded by Friedrich Konrad Beilstein
Friedrich Konrad Beilstein
Friedrich Konrad Beilstein , Russian name "Бейльштейн, Фёдор Фёдорович", was a chemist and founder of the famous Handbuch der organischen Chemie . The first edition of this work, published in 1881, covered 1,500 compounds in 2,200 pages...

 in 1881, but has appeared online under a number of different names, including Crossfire Beilstein. Since 2009, the content has been maintained and distributed by Elsevier
Elsevier
Elsevier is a publishing company which publishes medical and scientific literature. It is a part of the Reed Elsevier group. Based in Amsterdam, the company has operations in the United Kingdom, USA and elsewhere....

 Information Systems in Frankfurt under the product name "Reaxys".

The database contains information on reactions, substances, structures and properties. Up to 350 fields containing chemical and physical data (such as melting point
Melting point
The melting point of a solid is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at standard atmospheric pressure...

, refractive index etc.) are available for each substance. References to the literature in which the reaction or substance data appear are also given.

The Beilstein content made available through Reaxys is complemented by information drawn from Gmelin (which gives access to the Gmelin Database
Gmelin database
The Gmelin database is a large database of organometallic and inorganic compounds updated quarterly. It is based on the German publication the Gmelins Handbuch der anorganischen Chemie written by Leopold Gmelin in 1887, and currently contains 1.5 million compounds and 1.3 million different reactions...

), a very large repository of organometallic
Organometallic chemistry
Organometallic chemistry is the study of chemical compounds containing bonds between carbon and a metal. Since many compounds without such bonds are chemically similar, an alternative may be compounds containing metal-element bonds of a largely covalent character...

 and inorganic
Inorganic chemistry
Inorganic chemistry is the branch of chemistry concerned with the properties and behavior of inorganic compounds. This field covers all chemical compounds except the myriad organic compounds , which are the subjects of organic chemistry...

 information, as well as by information drawn from the Patent
Patent
A patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....

Chemistry Database. The Reaxys registered trademark and the database itself are owned and protected by Elsevier Properties SA and used under license.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK