11296 IUPAC Gold Book - testosterone 10.1351/goldbook.11296 11296 current 1 Androgenic steroid hormone produced primarily in the testis, responsible for the development of the male sexual organs and male secondary sexual characteristics. The ovary also secretes testosterone, but circulating levels in the female are much lower than in the male. Androgen https://goldbook.iupac.org/terms/view/10384 hormone https://goldbook.iupac.org/terms/view/10810 ovary https://goldbook.iupac.org/terms/view/11057 secondary sexual characteristic https://goldbook.iupac.org/terms/view/11198 steroid https://goldbook.iupac.org/terms/view/11259 testis https://goldbook.iupac.org/terms/view/11295 PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 812 (https://doi.org/10.1515/pac-2015-1202) https://goldbook.iupac.org/terms/view/11296/html https://goldbook.iupac.org/terms/view/11296/json https://goldbook.iupac.org/terms/view/11296/plain Citation: 'testosterone' 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.11296 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. 2026-05-10T05:48:07+00:00