The Merck Index Online

The Merck Index

Chemistry's Constant Companion 

The Merck Index is the definitive reference work for scientists and professionals looking for authoritative information on chemicals, drugs and biologicals. 

The Royal Society of Chemistry are proud to be the exclusive providers of the 15th edition, which has been fully revised and updated to contain over 500 new monographs and 1,300 new structures. 

We have also developed The Merck Index Online, a powerful online platform featuring text and structure search functionality and a user-friendly interface. 

Further Information

The Merck Index* - Print Edition

Find out more about the print edition of The Merck Index

The Merck Index* Online

The most authoritative and reliable source of information on chemicals, drugs and biologicals, exclusive to the Royal Society of Chemistry.

15th Edition Reviews

"An indispensable reference work that any research department and any individual active in scientific publishing should have at their fingertips." Drug Discovery Research 74, 2013

*The name THE MERCK INDEX is owned by Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Whitehouse Station, N.J., U.S.A., and is licensed to The Royal Society of Chemistry for use in the U.S.A. and Canada.