14167 IUPAC Gold Book - natural product 10.1351/goldbook.14167 14167 current 1 Complex mixture derived from natural (biological) sources used in screening as a resource for identification of lead compounds. Pure compound of natural (biological) origin (whether obtained by purification of natural mixtures or by laboratory synthesis), as opposed to compounds originating from synthetic chemistry.Note: Typical origins include extracts from microbes and higher organisms from terrestrial or marine environments. PAC, 2011, 83, 1129. 'Glossary of terms used in biomolecular screening (IUPAC Recommendations 2011)' on page 1149 (https://doi.org/10.1351/PAC-REC-09-05-03) https://goldbook.iupac.org/terms/view/14167/html https://goldbook.iupac.org/terms/view/14167/json https://goldbook.iupac.org/terms/view/14167/plain Citation: 'natural 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.14167 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. 2026-06-27T15:20:52+00:00