Pure and Applied Chemistry (PAC) is the flagship journal of the International Union of Pure and Applied Chemistry (IUPAC). PAC advances chemistry worldwide by publishing:

IUPAC formal Recommendations and Technical Reports
This is where you will find the very latest IUPAC recommendations on data standards, nomenclature and terminology. Next to the IUPAC Colour Books, PAC is the only authoritative source for IUPAC recommendations, which are published after an exceptionally rigorous review process to provide standards that you can trust.
Review articles that explore critical areas of development in chemistry
PAC review articles identify dynamic areas of chemistry with significant impact on global advancement. This is your source to remain at the forefront of chemistry.
Special issues on emergent and topical concerns in the chemical sciences
PAC special issues highlight pioneering technologies, foster innovative collaboration across chemical disciplines and showcase examples of chemistry standards and FAIR data principles in practice.
All of this ensures that you can rely on PAC’s content to provide you with the best examples of practical open chemistry, as a part of IUPAC’s mission to provide the common language for chemistry and support the free exchange of scientific information.