Elsevier MDL and Key Organics partner to improve chemical sourcing

San Ramon, CA, May 8, 2006 - Elsevier MDL, producer of the MDL® Available Chemicals Directory and MDL® Screening Compounds Directory databases, and Key Organics Ltd., a leading supplier of screening compounds and chemical building blocks, have partnered in an effort to provide improved access to timely, accurate information for chemical sourcing and procurement for pharmaceutical, biotechnology and chemistry researchers.

Through its Bionet Research Intermediates catalog, Key Organics supplies novel building blocks for customers to utilize within their discovery chemistry programs. “By working closely with Elsevier MDL, we’re able to ensure that customers are viewing accurate information in Available Chemicals Directory, the most widely used sourcing database,” says Dr. Colin Piper, Business Development Manager, Key Organics.

“Chemists rely on the unmatched coverage of MDL Available Chemicals Directory to find compounds from suppliers, including specialty suppliers, from around the globe,” said Trevor Heritage, Senior Vice President and Chief Science Officer at Elsevier MDL. “For this reason, currency and accuracy are paramount. Our partnership with Key Organics facilitates regular updates of their latest products, including unique compounds that aren’t available elsewhere.”

The partnership between the companies includes an exchange of information that makes it easy and quick for mutual customers to order products from Key Organics using the MDL number from the databases.

The structure-searchable Available Chemicals Directory and the Screening Compounds Directory databases from Elsevier MDL compile detailed product and pricing information for millions of chemical products from hundreds of suppliers around the globe. The databases are accessible via the online DiscoveryGate® platform (allowing researchers to view chemical sourcing information linked with synthetic methodology, bioactivity, metabolism, toxicity, and health and safety information) and are available for in-house installation. Researchers can also leverage the value of Available Chemicals Directory and close supplier relationships with companies like Key Organics through the new MDL® Logistics application, a cradle-to-grave solution for sourcing reagents and managing in-house chemical inventories.

About Key Organics Ltd.
Key Organics was formed in 1986, supplying schemes of novel small-molecule chemistry to customers under confidentiality agreements. Over the last 20 years Key has provided companies worldwide with screening compounds, building blocks and chemistry services. In recent years custom and contract synthesis and lead optimization programs have become an increasingly important part of Key Organics business for clients worldwide. Based at a well-equipped multi-lab site in Camelford, Cornwall, UK, Key Organics employs graduate and Ph.D. chemists, including medicinal chemists, with experience in a wide range of chemical techniques and technologies. Key Organics is able to supply milligram to kilogram quantities of compounds to a high specification. For more information visit www.keyorganics.ltd.uk.

About Elsevier MDL
Elsevier MDL provides informatics, database and workflow solutions that accelerate successful life sciences R&D by improving the speed and quality of scientists’ decision making. Researchers around the world depend on Elsevier MDL for innovative and reliable discovery informatics software solutions and services augmented by 400 Elsevier chemistry and life sciences journals and related products. For more information, visit www.mdl.com. Elsevier is a world-leading publisher of scientific, technical and medical information products and services.

Elsevier is part of Reed Elsevier Group plc, a world-leading publisher and information provider. Reed Elsevier's ticker symbols are REN (Euronext Amsterdam), REL (London Stock Exchange), RUK and ENL (New York Stock Exchange). For more information visit www.reedelsevier.com .

Dr. Phil McHale
VP, Market and Corporate Communications
Elsevier MDL
Phone: (925) 543-7800
Email: p.mchale@mdl.com

Dr. Colin Piper
Business Development Manager
Key Organics Ltd.
Phone: +44(0) 1840 212137
Email: colin@keyorganics.ltd.uk

MDL, DiscoveryGate and Available Chemicals Directory are registered trademarks or trademarks of MDL Information Systems, Inc. (‘Elsevier MDL’) in the United States. All rights reserved. All other trademarks mentioned in this document are the property of their respective owners.

About Elsevier
Elsevier is a global information analytics business that helps scientists and clinicians to find new answers, reshape human knowledge, and tackle the most urgent human crises. For 140 years, we have partnered with the research world to curate and verify scientific knowledge. Today, we’re committed to bringing that rigor to a new generation of platforms. Elsevier provides digital solutions and tools in the areas of strategic research management, R&D performance, clinical decision support, and professional education; including ScienceDirect, Scopus, SciVal, ClinicalKey and Sherpath. Elsevier publishes over 2,500 digitized journals, including The Lancet and Cell, 39,000 e-book titles and many iconic reference works, including Gray's Anatomy. Elsevier is part of RELX, a global provider of information-based analytics and decision tools for professional and business customers. www.elsevier.com