MedicinesComplete brings together world-leading drug and healthcare resources in an intuitive, easy-to-use online subscription solution.

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The Merck Index is a world renowned reference source for chemical, pharmaceutical and biomedical information that contains more than 10,000 monographs, 28 supplemental tables, and 450 organic name reactions. For over 100 years, The Merck Index has provided critically evaluated, peer-reviewed, and authoritative information on compounds of significance in research, commerce, and environmental impact.

Broad subject coverage

Monographs provide descriptions of more than 18,000 substances across multiple scientific disciplines including:

• drugs for humans and animals
• organic chemicals used in research and manufacturing
• plants and traditional medicines
• natural products, toxins, and biologicals
• agricultural chemicals, pesticides, and herbicides
• food additives and nutritional supplements
• fragrances, flavors, cosmetics, dyes, stains, and colors

Your index to chemical information

Each monograph provides a concise summary of a compound's activity and importance with data such as:

• chemical structure depiction
• molecular formula, weight, and percentage composition
• physical properties and toxicity data
• scientific and patent literature references
• therapeutic and commercial use
• caution and hazard information

An extensive collection of synonyms includes:

• chemical, common, and generic names
• trademarks and associated companies
• manufacturer codes
• CAS Registry Numbers

Special collections

• over 900 retired monographs archived from previous editions
• the organic name reactions include reactions schema and key references
• the therapeutic category index provides over 370 classifications hyperlinked to over 4000 monographs
• the supplemental tables comprise a collection of hard-to-find biomedical and chemical information, for example acronyms, vaccines, amino acids, and radioactive isotopes used in medicine