International Union of Pure and Applied Chemistry (IUPAC)

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1919 Paris France


Founded to carry on the work of H-XH1262 - International Association of Chemistry Societies, set up 26 Apr 1911, London (UK).

Title abbreviated to International Union of Chemistry -- Union internationale de chimie in 1930, but the full title was resumed 1951.

Statutes and Bylaws adopted by the Council 9 Sep 1975, Madrid (Spain); additions and amendments approved: 9-10 Sep 1979, Davos (Switzerland); 1-2 Sep 1981, Leuven (Belgium); 25-26 Aug 1983, Lyngby (Denmark); 6-7 Sep 1985, Lyon (France); 16-17 Aug 1989, Lund (Sweden); 14-15 Aug 1991, Hamburg (Germany); 11-12 Aug 1993, Lisbon (Portugal); 10-11 Aug 1995, Guildford (UK); 20-30 Aug 1997, Geneva (Switzerland); 13-14 Aug 1999, Berlin (Germany); 7-8 Jul 2001, Brisbane (Australia); 5-6 Aug 2009, Glasgow (UK); 12-13 Jul 2017, São Paulo (Brazil); 5 May 2021, during virtual meeting; 13-15 Aug 2021, during virtual meeting; 4 June 2022, during virtual meeting; 23-24 Aug 2023, The Hague (Netherlands).


Rely on experts in the chemistry community to provide nomenclature, terminology, symbols and (digital) standards to create the common language of chemistry.


2029-08-18 | Prague, Czechia – World Chemistry Congress
2027-07-16 | Montréal, QC Canada – World Chemistry Congress
2026-07-06 | Kuching, Malaysia – MACRO : World Polymer Congress
2025-09-01 | Kyoto, Japan – International Symposium on Organometallic Chemistry Directed Toward Organic Synthesis (OMCOS)
2025-07-13 | Kuala Lumpur, Malaysia – World Chemistry Congress
2025 | Monastir, Tunisia – International Conference on Solution Chemistry (ICSC)
2024-08-18 | Beijing, China – ICPOC: IUPAC International Conference on Physical Organic Chemistry
2024-08-11 | Toronto, ON Canada – ISNA: International Symposium on Novel Aromatic Compounds
2024-07-15 | Pattaya, Thailand – International Conference on Chemistry Education (ICCE)
2024-07-14 | Valencia, Spain – PhotoIUPAC - IUPAC Symposium on Photochemistry
2024-06-30 | Maastricht, Netherlands – International Biotechnology Symposium

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Council (every 2 years in odd years); Executive Board; Science Board; Divisions; Committees; Secretariat. E-XE7233 - IUBMB-IUPAC Joint Commission on Biochemical Nomenclature (JCBN).


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Annual Budget

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Consultative Status

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Relations with Inter-Governmental Organizations

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Relations with Non-Governmental Organizations

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Active Areas & Regions

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Type I Classification

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Type II Classification

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Subjects *

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* Subject classification is derived from the organization names and aims.
** UN SDGs are linked to the subject classification.

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