Periodic Table Update

Time to review yours
The "Standard Atomic Weights of the Elements 2021” is out !
And so is an updated Periodic Table which contains these latest revisions listing the abridged atomic weights along with their +/− values.


Basic Sciences for Sustainable Development
The International Year of Basic Sciences for Sustainable Development (IYBSSD 2022) has been proclaimed by the United Nations General Assembly. It will be officially inaugurated with an opening conference 8 July 2022 at UNESCO headquarters in Paris, and will run for a year of events and activities will be organized around the world until 30 June 2023.

in Chemistry International

Apr-June 2022 issue
In the current issue ...
- Artificial Intelligence and Chemistry: How do we shape the future?
- IUPAC from A Young Chemist’s Perspective
- Physical Organic Chemistry in the 21st Century
- Hidden HERstory—Helen Stevens
- IUPAC and IYCN: Working Together for a Globally Sustainable Future
- CHEMRAWN XXII E-waste in Africa

& News, imPACt, Up for Discussion, and more ...

Transforming Education

toward a sustainable future using systems thinking
That’s one major goal of the IUPAC Project on Systems Thinking in Chemistry for Sustainability: Toward 2030 and Beyond (STCS2030+). Among other outcomes the IUPAC project will help to feature the role of chemistry and chemistry education in meeting goals of the International Year of Basic Sciences for Sustainable Development.

January 24, the International Day of Education
"Changing Course, Transforming Education"

Connecting Chemical Worlds

The 2023 IUPAC Congress will be organized in the beautiful city The Hague by the Royal Netherlands Chemical Society (KNCV) and the Dutch Research Council (NWO).

Join us for IUPAC | CHAINS2023 in August 2023.

Diversity and Inclusion

Chemistry is all about diversity: each new bond, each additional group makes the whole richer and stronger. IUPAC recognizes that to fulfill its vision, it must strongly commit to embracing and promoting transparency, diversity, inclusion, and equal opportunities for all.

Advancing the Worldwide Role of Chemistry

IUPAC serves the international scientific endeavor in the dual function of a fundamental science and mission-oriented Union. The Union is in a unique position to contribute to the central interdisciplinary chemical sciences.

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How Can YOU Help Support IUPAC In Its Mission?

Support IUPAC in its mission by connecting your Amazon account with Amazon Smile. All you need to do is start your shopping at The donation will be made to IUPAC at no extra cost to you. It’s that easy!

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  • An

    Analytical Chemistry

  • Ph

    Physical Chemistry

  • En

    Chemistry and Environment

  • Or

    Organic Chemistry

  • In

    Inorganic Chemistry

  • Wn

    Chemistry Applied to World Needs

  • Pc

    Publications and Cheminformatics Data Standards

  • Hh

    Chemistry and Human Health

  • Po


  • Nt

    Nomenclature and Terminology

  • Ec

    Chemistry Education

  • Gc

    Green Chemistry for Sustainable Development

  • Ic

    Chemistry and Industry

Over 50 nations are Affiliated with IUPAC Is yours? Click to find out

Have you seen CI lately?

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Empowering Diversity in Science – GWB 2022

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