Beilstein Online

The Beilstein Online Database - Implementation, Content and Retrieval, S.R. Heller (Ed.), American Chemical Sodety, Washington, DC, 1990. 

S. Welford, C. Jochum, Chemical stmcture registration for Beilstein Online, in Chem. Stmct. 2, Proc. 2nd Int. Conf, 1993, pp. 161-170. 

Beilstein File. Beilstein first went on-line on STN International in December 1988 with information on 350,000 compounds, and several months later it was also on Dialog. Beilstein Online now comprises data on five million compounds. The organic substance records contain the critically reviewed and evaluated documents from the beilstein Handbook of Organic Chemist main volume and supplements 1—5, which cover the chemical Hterature from 1779 through 1979. These evaluated data are indicated as Handbook Data in the notes of Hterature references. The Beilstein Eile also contains organic substance records for unreviewed excerpts from the primary Hterature from 1980 to 1991. 

Design Institute for Physical Properties Research, Project 801, Data Compilation 1995 Beilstein Online Beilstein Institute for Organic Chemistry, Springer-Vedag, Heidelberg, Germany, 1995. 

Compounds newly reported in the fifth supplement that are in a volume whose index has not yet been published will not be found by this procedure. To find them in Beilstein it is necessary to know something about the system (see Ref. 21), but they may also be found by consulting CA indexes beginning with the sixth collective index, or by using Beilstein online. 

The ACS also offers the "Beilstein Online Database." This is claimed to he the most complete and systematic collection or evaluated data oh organic compounds. The database is reviewed in a len-chapler. "The Beilstein Online Database Implementation. Content, and Retrieval." available from American Chemical Society. Washington. DO... 

Stephen R. Heller, The Beilstein Online Database Implementation, Content, and Retrieval, Developed from a symposium sponsored by the Division of Computers in Chemistry at the 198th National Meeting of the American Chemical Society, Miami Beach, FL, September 10-15, 1989, in ACS Symposium Series 436, American Chemical Society, Washington, DC, 1990. 

Hartwell IO, Haglund KA. An overview of Dialog. In Heller SR, ed. The Beilstein Online Database implementation, content and retrieval. ACS Symposium Series 436. Washington, DC American Chemical Society, 1990 42-63. 

Beilstein Online Bcilstein Institute Frankfurt, Germany (accessed March 1996). 

Master s-level chemists who, even with the aid of a dictionary, can translate the experimental sections of chemical publications in foreign languages offer an advantage to their employer. Chemists familiarity with the secondary and tertiary literature of organic chemistry as it pertains to synthesis also helps with their work examples taken from this literature appear in Table 5-2. Another plus is proficiency in use of computer applications that, like Beilstein online, search the chemical literatiire. 

IBM-PC s and compatibles. One point should be made clear at the outset SANDRA should not be confused with BEILSTEIN ONLINE. The difference is BEILSTEIN ONLINE will supply chemical information directly, whereas SANDRA gives no chemical information, but rather outputs where to look in the printed Handbook for the information sought (i.e., yields pointers to the database following a set algorithm). 

MOLMOUSE (Input of organic MOLecules using a mechanical MOUSE) was developed within the Beilstein Database Project. The projected, numerical factual database BEILSTEIN-ONLINE represents a natural extension of the BEILSTEIN Handbook of Organic Chemistry which has been published for more than 100 years in more than 300 volumes. 

The projected, numerical factual database BEILSTEIN-ONLINE represents a natural extension of the Beilstein Handbook of Organic Chemistry which has been published for more than 100 years in more than 300 volumes. The Handbook together with the structure file cards of the literature period 1960-1980 (E-V Period) contain factual and structural information on more than 4 million compounds. The computer representation of organic chemical structures therefore constitutes the centre part of the database design. The chemical structure is described in a post-topological format. Not only constitutional information is included but also a complete stereochemical representation. Bond orders are replaced by electronic information. This allows a much more global and unique representation of tautomers. This paper gives an overview not only of the data structure of chemical compounds but also of its associated physical numerical data and keywords. 

Three chapters about online databases follow. Clemens Jochum s concerns the construction of the Beilstein Online database. Of particular interest are the complete representation of stereochemistry and the replacement of bond orders by electronic information, allowing a global, and unique, representation of tautomers. Ole Norager describes the ECDIN project, in which data has been collected on environmental chemicals and made accessible online. Gerry vander Stouw shows how the Chemical Abstracts Registry System Enhancements Feasibility Study project identified aspects of the CAS structuring conventions which create problems for users and he considers the improvements which may be recommended. 

Heller, S. R., ed. The Beilstein Online Database Implementation, Content and Retrieval. American... 

Beilstein Online Database Heller, S., Ed. ACS Symposium Series 436 American Chemical Society Washington, 1990. 

File 390 Beilstein Online-3,415,097 substances Apr 1990 Copr. ringer-Verlag... 

Four chapters on other operational substructure search systems follow. Jean Marcah and co-workers describe the Du Pont global technical information system Steve Welford and Clemens Jochum report on chemical structure registration for Beilstein Online Peter Rusch also covers Beilstein Onhne in a paper about substructure searching on Dialog and the DARC Toolkit which was described by Pascal Huguet is summarised in a chapter written by Bill Town with some suggestions from myself and Pierre Buffet of Questel. 

Beilstein and CrossFire and NetFire Database. The Beilstein Handbuch der Organischen Chemie contains evaluated numeric and factual data on millions of compounds. The complete Beilstein Online was available at the host STN in 1991. Also the host DIALOG offers the Beilstein database (see Factual Information Databases). 

The BEILSTEIN online database is a structure-oriented factual database in organic chemistry containing the critically reviewed and evaluated data from various sources. It is produced by the Beilstein Institute of Organic Chemistry in Frankfurt. The database is accessible through either STN International or The DIALOG Corporation. In the following the description will focus on the STN implementation since it is the more up-to-date version. Currently, the four sources of information for the database are ... 

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