IUPAC - the International Union of Pure and Applied Chemistry - is not a conventional commercial publisher. Founded in 1919 and headquartered in Research Triangle Park, North Carolina, it is the international body that sets the common language of chemistry: nomenclature and terminology, the names of new elements in the periodic table, standardized measurement methods, and standard atomic weights. Its publishing program exists to disseminate that standards work, and since 2014 its core journals have been produced in partnership with De Gruyter (now De Gruyter Brill, following the 2024 merger of De Gruyter and Brill).

That difference matters for authors. Much of what appears in IUPAC's flagship journal, Pure and Applied Chemistry, is commissioned through IUPAC's formal project system - Recommendations and Technical Reports drafted by task groups and exposed to public review - rather than submitted cold. But conference-based papers, invited lectures, and chemistry-education research all have genuine submission routes, and this guide covers each of them.

Three core journals with De Gruyter Brill, plus co-published series:

• Pure and Applied Chemistry (PAC) - the official IUPAC journal, founded 1960, published monthly. It carries IUPAC Recommendations (the documents that define nomenclature and terminology), Technical Reports, and lectures from IUPAC-sponsored conferences. Some PAC reports become among the most-cited documents in chemistry - the 1985 physisorption recommendations alone have been cited thousands of times.
• Chemistry International (CI) - the quarterly news magazine of IUPAC, covering projects, division activity, conference reports, and community news.
• Chemistry Teacher International (CTI) - a fully open-access, peer-reviewed chemistry-education journal launched in July 2019 by the Committee on Chemistry Education, aimed at teachers at all levels and chemistry-education researchers.
• Co-published series - Macromolecular Symposia (with Wiley-VCH) for IUPAC polymer symposia, and the Solubility Data Series (with AIP Publishing, in the Journal of Physical and Chemical Reference Data).

IUPAC also maintains the IUPAC Standards Online database with De Gruyter Brill, which makes the standards and recommendations from the PAC archive searchable, and the famous "color books" (the Gold Book of chemical terminology, the Blue Book for organic nomenclature, the Red Book for inorganic nomenclature, and others).

IUPAC does not publish a central APC table or LMIC waiver policy of its own; fees and waivers are administered by De Gruyter Brill per journal, and institutional open-access agreements with De Gruyter Brill may cover eligible authors. Always confirm on the journal's fees page before submission.

• Pure and Applied Chemistry uses single-anonymized peer review for conference papers and invited content. IUPAC Recommendations follow a stricter path: task-group drafting under an approved IUPAC project, internal review by the relevant division, and a public-review period before final publication.
• Chemistry Teacher International runs conventional single-anonymized peer review for education-research articles.
• Chemistry International is editorially reviewed magazine content, not peer-reviewed research.

1. Pick the venue. Recommendations and Technical Reports must originate from an approved IUPAC project - propose one via iupac.org if your work defines standards. Conference papers and education research can be submitted directly.
2. Read the author guidelines. PAC's guidelines, including the rules for drafting Recommendations, are on iupac.org and the De Gruyter Brill journal page.
3. Prepare your manuscript. Use the IUPAC template on SciSpace and IUPAC's numbered citation style; apply IUPAC nomenclature throughout.
4. Submit via ScholarOne. PAC uses ScholarOne Manuscripts (Manuscript Central) at mc.manuscriptcentral.com/pac; CTI submits through its De Gruyter Brill portal.
5. Track and revise. ScholarOne provides status tracking, reviewer reports, and revision handling.

IUPAC is a non-profit scientific union, and its journals follow the publication-ethics framework of De Gruyter Brill, a COPE member. The standards-setting process itself adds a further integrity layer: Recommendations are drafted by international task groups, reviewed by IUPAC divisions, and opened to public comment before they are adopted. Authors should disclose conflicts of interest and follow the journal-level data and ethics policies stated on each De Gruyter Brill journal page.