02556 IUPAC Gold Book - functional parent 10.1351/goldbook.F02556 F02556 current 1 A structure the name of which implies the presence of one or more characteristic groups and which has one or more hydrogen atoms attached to at least one of its skeletal atoms or one of its characteristic groups, or in which at least one of its characteristic groups can form at least one kind of functional modification. A parent hydride bearing a characteristic group denoted by a suffix, for example, cyclohexanol, is not considered to be a functional parent, but may be described as a 'functionalized parent hydride'. characteristic groups https://goldbook.iupac.org/terms/view/C00976 parent hydride https://goldbook.iupac.org/terms/view/P04405 Blue Book Guide, p. 13 (https://doi.org/10.1351/pac199971071327) https://goldbook.iupac.org/terms/view/F02556/html https://goldbook.iupac.org/terms/view/F02556/json https://goldbook.iupac.org/terms/view/F02556/plain Citation: 'functional parent' 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.F02556 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. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . 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. 2026-06-28T09:46:09+00:00