International Union of Pure & Applied Chemistry

Who We Are
- Member Directory
  Looking for someone? Search IUPAC global network.
- Organizational Chart
  A Graph is Worth a Thousand Words.
- Strategic Plan
  Our mission, vision, values and unique place in the world.
- Divisions
  The fields of chemistry covered by IUPAC volunteers.
- Committees
  Advisory and operational bodies serving our community.
- Governance
  IUPAC Statutes, Bylaws, and Standing Orders.
- Leadership
  In office from two to eight years, the officers serve the Union as volunteers.
- Secretariat
  Meet the staff who support IUPAC and its activities.
- History
  From global chemists’ need for standardization and the vision to unite.
What We Do
- Periodic Table of Elements
  Latest release based on the work of the Commission on Isotopic Abundances and Atomic Weights.
- Top 10 Emerging Technologies
  Annual selection showcasing the value and importance of Chemistry.
- Recommendations and Reports
  Unambiguous and consistent nomenclature and terminology, evaluation of data, methods or techniques, guidelines and more.
- Nomenclature
  The expertise IUPAC is known for.
- Digital Standards
  Chemical standards for the digital workplace, e.g. InChI, ThermoML, JCAMP-DX.
- Databases
  Resources to search and retrieve output of IUPAC research activities.
- Journals
  Peer reviewed and open access publications, including PAC, CTI, CI, MS, and SDS.
- Color Books
  Authoritative resources for chemical nomenclature, terminology, and symbols.
- Awards
  Honoring scientists from early career to expert level chemists.
- JCGM
  The Joint Committee for Guides in Metrology.
- Projects
  How we do what we do and how we get the word out.
- Conferences
  Endorsement program and financial support opportunities.
Events
Projects
News

The International Union of Pure and Applied Chemistry (IUPAC)

The International Union of Pure and Applied Chemistry (IUPAC) is the world authority on digital standards in chemistry; chemical nomenclature and terminology, including the naming of new elements in the periodic table; on standardized methods for measurement; and on atomic weights. Founded in 1919, IUPAC has been creating the common language of chemistry for more than a century.

IUPAC is a leader in the provision of objective scientific expertise for the resolution of critical global issues that involve every aspect of chemistry, all of which have societal impact. Our scientific work is conducted largely through a formal project system, in which proposals from chemists around the world are peer-reviewed and, if meritorious, are approved and supported. In addition, IUPAC is involved in a wide range of diverse activities that ultimately impact both the chemical profession and society as a whole.

IUPAC unites chemists worldwide and we fulfill our mission by fostering sustainable development, providing a common language for chemistry, and advocating the free exchange of scientific information.

We are IUPAC – International and Unique, advancing Pure and Applied Chemistry worldwide!

Emerging from about three years of virtual meetings only, the Bureau gathered in-person in November 2022. Front raw, from left: Christopher Brett (Past President, Portugal), Wolfram Koch (Treasurer, Germany), Ehud Keinan (Vice President, Israel), Javier García Martínez (President, Spain), Mei-Hung Chiu (Taiwan Normal University), Richard M. Hartshorn (Secretary General, New Zealand); middle: Jan Reedijk (Netherlands), Greta Heydenrych (staff), Ghada Bassioni (Egypt) Helle Møller Johannessen (Denmark), Leah McEwen (USA), Zoltán Mester (Canada), Lidia Armelao (Italy), David Shaw (USA), Mary Garson (Australia), Amelia Rauter (Portugal), Christine Luscombe (Japan), Laura McConnell (USA); back: Petr Fedotov (Russia), Marietjie Potgieter (South Africa), Fabienne Meyers (staff), Attila Császár (Hungary), Michelle Rogers (USA). Attending remotely and not present: Hemda Garelick (UK), Gloria Obuzor (Nigeria), Bipul Behari Saha (India), Ken Sakai (Japan), Zhigang Shuai (China), Pierangelo Metrangolo (Italy), Roberto Terzano (Italy), Buxing Han (China), Fran Kerton (Canada), Anna Makarova (Russia), and Jürgen Stohner (Switzerland)