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Our databases

Rapid and easy access to accurate chemical information.

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Our databases provide high quality chemical information for chemistry academics, professionals and students.

The Merck Index* Online

For over 130 years, the most authoritative and reliable source of information on chemicals, drugs and biologicals. Now available online and fully searchable with over 12,000 monographs, including new and historical records not available in the print edition.

ChemSpider

A free database of over 120 million chemical structures, properties, and associated information. ChemSpider integrates data from hundreds of sources, and includes additional properties, related information, and links back to original data sources.

MarinLit

A comprehensive database of the marine natural products literature, covering new and revised structures, synthesis, ecology and biological activities. Features flexible searching and powerful dereplication tools based on predicted and experimental data.

* The name THE MERCK INDEX is owned by Merck & Co., Inc., Rahway, NJ, USA and its affiliates, and is licensed to The Royal Society of Chemistry for use in the USA and Canada.