Each year IUPAC endorses a large number of independently organized conferences, symposiums and workshops that cover a wide range of specialized topics in chemistry. Endorsement by IUPAC attests to the quality of the scientific program and indicates the host country’s assurance that scientists from all countries may participate. The conference must be located in a country represented in IUPAC by a National Adhering Organization. See program details.

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20 Aug 2023 - 27 Aug 2023

IUPAC World Chemistry Congress 2023

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> Post event – link to FLICKR photos album

We are pleased to invite you to join us in the beautiful city The Hague for IUPAC|CHAINS2023 in August 2023. During the conference, themed ‘Connecting Chemical Worlds’, we bring together all disciplines of chemistry, a diverse audience of chemists from both academia and industry, and from all around the globe. Apart from plenary and keynote lectures, the congress will include parallel sessions with oral presentations, working group meetings and poster presentations by junior and senior researchers.

The conference consists of several parts, namely the 52nd IUPAC General Assembly (18-25 August 2023) and the 49th IUPAC World Chemistry Congress combined with the 11th edition of CHAINS, the largest chemistry congress from the Netherlands (20-25 August 2023).

IUPAC|CHAINS2023 is organized by the Royal Netherlands Chemical Society (KNCV) and the Dutch Research Council (NWO). The IUPAC World Chemistry Congress is organized biennially with recent previous editions in Sao Paolo (2017), Paris (2019) and digitally in Montreal (2021). In 2023 we expect to welcome you on location in The Hague to meet each other in person.

We look forward to meeting you and your fellow chemists around the globe during 2023 in the Netherlands. Let’s connect!

With warm regards,

On behalf of the organizing committee,

Floris Rutjes
Chair Local Organizing Committee IUPAC|CHAINS2023
> iupac2023.org
> Call for Focus session (posted 27 June 2022)


> Read Connecting Chemical Worlds by Floris Rutjes, Chem Int April 2023, p. 2
> Read Organizers interview in Chem Int July 2023, p. 48

Date & Time

20 Aug 2023


27 Aug 2023

Event Tags:


World Forum The Hague
Churchillplein 10
The Hague, Netherlands
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