Title: transition state analogue Long Title: IUPAC Gold Book - transition state analogue DOI: 10.1351/goldbook.T06469 Status: current Definition A substrate designed to mimic the properties or the geometry of the transition state of reaction. Related Term - transition state: https://goldbook.iupac.org/terms/view/T06468 Source - PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1174 (https://doi.org/10.1351/pac199466051077) Other Outputs - html: https://goldbook.iupac.org/terms/view/T06469/html - json: https://goldbook.iupac.org/terms/view/T06469/json - xml: https://goldbook.iupac.org/terms/view/T06469/xml Citation: Citation: 'transition state analogue' 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.T06469 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: 2026-06-28T09:34:38+00:00