The International Union of Pure and Applied Chemistry (IUPAC) is the world authority on chemical nomenclature and terminology, including the naming of new elements in the periodic table; on standardized methods for measurement; and on atomic weights, and many other critically-evaluated data.

A neutral and objective scientific organization, IUPAC was established in 1919 by academic and industrial chemists who shared a common goal – to unite a fragmented, global chemistry community for the advancement of the chemical sciences via collaboration and the free exchange of scientific information. Throughout its long history IUPAC has fulfilled that goal through the creation of a common language and the standardization of processes and procedures.

But IUPAC is about much more than nomenclature and the naming of elements.  We are 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. 

For almost a century IUPAC has contributed to the diverse and interdisciplinary field that is chemistry.  We are the catalyst that 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.