Title: branched chain Long Title: IUPAC Gold Book - branched chain DOI: 10.1351/goldbook.B00721 Status: current Definition A chain with at least one branch point intermediate between the boundary units. Related Terms - branch point: https://goldbook.iupac.org//terms/view/B00728 - chain: https://goldbook.iupac.org//terms/view/C00946 Source - PAC, 1996, 68, 2287. 'Glossary of basic terms in polymer science (IUPAC Recommendations 1996)' on page 2293 (https://doi.org/10.1351/pac199668122287) Other Outputs - html: https://goldbook.iupac.org/terms/view/B00721/html - json: https://goldbook.iupac.org/terms/view/B00721/json - xml: https://goldbook.iupac.org/terms/view/B00721/xml Citation: Citation: 'branched chain' 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.B00721 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: 2026-04-18T16:29:44+00:00