The International Union of Pure and Applied Chemistry (IUPAC) serves to advance the worldwide aspects of the chemical sciences and to contribute to the application of chemistry in the service of Mankind. As a scientific, international, non-governmental and objective body, IUPAC can address many global issues involving the chemical sciences. andappliedchemistryinternationaliupacmacromolecularpacpuresymposiumunion with appliedchemistryinternationalpureunionby 2 users