The International Union of Pure and Applied Chemistry, or IUPAC, is an organization that establishes standardized nomenclature and terminology in the field of chemistry. Founded in 1919, its primary goal is to promote international communication and collaboration among chemists. IUPAC develops guidelines for naming chemical compounds, ensuring that scientists worldwide can understand and share their work without confusion. In addition to nomenclature, IUPAC also plays a crucial role in defining chemical symbols, units of measurement, and methods for chemical analysis. The organization publishes various resources, including the IUPAC Red Book, which provides rules for naming organic compounds, and the IUPAC Gold Book, which contains definitions of chemical terms.