Common Chemistry — a web-based, free resource from Chemical Abstracts Service


 
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 CAS launches free web-based resource for non-chemists - 15 May 2009

 Chemical Abstracts Service (CAS), a division of the American Chemical Society, has launched a new, free, web-based resource called Common Chemistry. This resource is helpful to non-chemists and others who might know either a chemical name or a CAS Registry Number of a common everyday chemical and want to pair both pieces of information.

Common Chemistry contains nearly 7,800 chemicals of widespread and general interest, as well as all 118 elements from the periodic table. With the exception of some of the elements, all other substances in this collection were deemed of widespread interest by having been cited 1,000 or more times in the CAS databases.

While not intended to be a comprehensive CAS Registry Number (CAS RN) lookup service, Common Chemistry does provide access to information on chemicals of general interest. The CAS Registry Number is recognised throughout the world as the most commonly used, unique identifier of chemical substances. The full CAS REGISTRYSM database contains more than 46 million organic and inorganic substances. Research discovery and patent tools such as SciFinder and STN allow users to search the entire database.

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Source:  Knowledgespeak Newsletter &  CAS.

Note:  Princeton University Library subscribes to the complete CAS Chemical Abstracts and Registry database — available as SciFinder Scholar.

 

40 millionth chemical substance — CAS

US CAS registers 40 millionth substance - 04 Dec 2008

Chemical database provider Chemical Abstracts Service (CAS) has announced that CAS Registry now includes 40 million organic and inorganic substances. The CAS Registry is one the most comprehensive collections of chemical substances and the CAS Registry Number is the recognised global standard for chemical substance identification. More than 100 million CAS Registry Numbers have been assigned to organic and inorganic substances and biosequences.

The 40 millionth substance was identified by CAS scientists in a journal article published in Angewandte Chemie International Edition. The article describes a novel method for the synthesis of polycyclic substances with ‘a central seven-membered carbocycle’, including the 40 millionth substance.

A division of the American Chemical Society, CAS provides the world’s largest and most current collection of chemical and related scientific information, including the authoritative database of chemical substances, the CAS REGISTRY. CAS combines these databases with advanced search and analysis technologies to deliver complete, cross-linked and effective digital information environment for scientific research and discovery, including such products as SciFinder, STN, STN Express and STN AnaVistTM, among others.

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Source:  Knowledgespeak Newsletter Dec. 4, 2008