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| Clinical data | |
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| Other names | Estr-5-ene-3,17-dione; 19-Norandrost-5-ene-3,17-dione |
| Routes of administration | Oral |
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| Chemical and physical data | |
| Formula | C18H24O2 |
| Molar mass | 272.388 g·mol−1 |
| 3D model (JSmol) | |
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19-Nor-5-androstenedione, also known asestr-5-ene-3,17-dione, is asynthetic,orally activeanabolic-androgenic steroid (AAS) and aderivative of19-nortestosterone (nandrolone) that was never introduced formedical use.[1][2][3] It is anandrogen prohormone ofnandrolone and of other19-norandrostanes.[1][2][3]
19-Nor-5-androstenedione,19-nor-5-androstenediol, and other 19-norandrostane prohormones were considered to benutritional supplements and were soldover-the-counter in theUnited States as a result of theDietary Supplement Health and Education Act of 1994 (DSHEA).[1][2] However, they were banned from sports in 1999 by theInternational Olympic Committee (IOC) and are currently on theWorld Anti-Doping Agency (WADA) list of prohibited substances.[1] In 2004, they becamecontrolled substances in the U.S. as a result of theAnabolic Steroid Control Act of 2004.[1]