Title: product Long Title: IUPAC Gold Book - product DOI: 10.1351/goldbook.P04861 Status: current Definition A substance that is formed during a chemical reaction. Related Term - reactant: https://goldbook.iupac.org//terms/view/R05163 Source - PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 178 (https://doi.org/10.1351/pac199668010149) Other Outputs - html: https://goldbook.iupac.org/terms/view/P04861/html - json: https://goldbook.iupac.org/terms/view/P04861/json - xml: https://goldbook.iupac.org/terms/view/P04861/xml Citation: Citation: 'product' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.P04861 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-04-18T03:52:32+00:00