Topterone
| Clinical data | |
|---|---|
| Other names | WIN-17665; Propyltestosterone; 17α-Propyltestosterone; 17α-Propylandrost-4-en-17β-ol-3-one | 
| Routes of administration  | Topical | 
| Identifiers | |
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| CAS Number | |
| PubChem CID | |
| ChemSpider | |
| UNII | |
| CompTox Dashboard (EPA) | |
| ECHA InfoCard | 100.056.638 | 
| Chemical and physical data | |
| Formula | C22H34O2 | 
| Molar mass | 330.512 g·mol−1 | 
| 3D model (JSmol) | |
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Topterone (INN, USAN) (developmental code name WIN-17665), also known as 17α-propyltestosterone (or simply propyltestosterone) or as 17α-propylandrost-4-en-17β-ol-3-one, is a steroidal antiandrogen that was first reported in 1978 and was developed for topical administration but, due to poor effectiveness, was never marketed.