Information Today
Volume 18, Issue 1 — January 2001
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CAS Launches ChemPort Reference-Linking Service

Chemical Abstracts Service (CAS) has announced the introduction of a free reference-linking service for scientific publishers that adds links from references in scientific articles to the world’s largest sci-tech databases. 

“We are pleased to provide this new reference linking free of charge to the scientific community,” said CAS director Robert Massie. “As stewards of the world’s largest repository of bibliographic information in chemistry and related sciences, we see this service as aligned with our mission to facilitate scientific discourse. We are serving both the world research community and the primary publishing community, with which we have cooperated for nearly a century.” 

The links allow users to click on references within the Web version of the publishers’ journals and, for no additional charge, continue their research in the CAS or MEDLINE databases by viewing records for the cited articles. From there, researchers can link directly to the full-text electronic document, if it’s from one of the more than 100 participating ChemPort publishers. 

ACS Publications joined CAS in the reference linking pilot service in 1999. Other publishers now employing reference linking in ChemPort are Academic Press/IDEAL, the American Institute of Physics, the Institute of Physics, the Royal Society of Chemistry, and Springer-Verlag. Also participating is CatchWord, a leading independent hosting service that currently hosts 58 scholarly and academic publishers. 

The new reference-linking capability will offer scientists both free and fee-based options, including the following: 

  • The ability to view abstracts from CAS or other participating database producers 
  • Direct links from references to articles of participating ChemPort publishers 
  • The ability to link to other documents cited in the referenced article 
  • A capability to purchase articles, including a credit card payment option 
  • The opportunity to continue their research by searching CAS databases 
The ChemPort Connection is incorporated into all CAS electronic search service interfaces, including STN Express, STN Easy, STN on the Web, SciFinder, SciFinder Scholar, and CA on CD. Researchers identifying relevant articles or patents by searching CAS databases and others on the STN International network ( can immediately link from the database record to the associated full-text document on the Web sites of participating journal publishers or patent offices for no additional charge. 

Source: Chemical Abstracts Service, Columbus, OH, 614/447-3600;

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