Androstenedione
| Clinical data | |
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| Other names | A4; Δ4-dione; Androstenedione; Androst-4-ene-3,17-dione; 4-Androstene-3,17-dione; 17-Ketotestosterone; 17-Oxotestosterone; 3,17-Dioxoandrost-4-ene; Fecundin |
| Routes of administration | By mouth |
| Drug class | Androgen; Anabolic steroid |
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| Pharmacokinetic data | |
| Metabolism | Liver |
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| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.000.504 |
| Chemical and physical data | |
| Formula | C19H26O2 |
| Molar mass | 286.415 g·mol−1 |
| 3D model (JSmol) | |
| Density | 1.11±0.1 g/cm3 (predicted) at 20°C and 760 Torr. Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (© 1994-2023 ACD/Labs). |
| Melting point | 173–174 °C (343–345 °F) |
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Androstenedione, or 4-androstenedione (abbreviated as A4 or Δ4-dione), also known as androst-4-ene-3,17-dione, is an endogenous weak androgen steroid hormone and intermediate in the biosynthesis of estrone and of testosterone from dehydroepiandrosterone (DHEA). It is closely related to androstenediol (androst-5-ene-3β,17β-diol).