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| Clinical data | |
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| Other names | M-Sten; Methyl-Sten; Ultradol; NSC-74234; 2,17α-Dimethyl-δ1-4,5α-dihydrotestosterone; 2,17α-Dimethyl-δ1-DHT; 2,17α-Dimethyl-5α-androst-1-en-17β-ol-3-one |
| Routes of administration | intramuscularBy mouth |
| Drug class | Androgen;Anabolic steroid |
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| Pharmacokinetic data | |
| Bioavailability | 98% |
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| Chemical and physical data | |
| Formula | C21H32O2 |
| Molar mass | 316.485 g·mol−1 |
| 3D model (JSmol) | |
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Methylstenbolone, known by the nicknamesM-Sten,Methyl-Sten, andUltradrol, is asynthetic andorally activeanabolic–androgenic steroid (AAS) and a17α-methylatedderivative ofdihydrotestosterone (DHT) which was never introduced formedical use.[1][2][3] It is adesigner steroid and has been sold via theinternet marketed as adietary/nutritional supplement.[1][2][3]
Methylstenbolone, also known as2,17α-dimethyl-δ1-4,5α-dihydrotestosterone (2,17α-dimethyl-δ1-DHT) or as2,17α-dimethyl-5α-androst-1-en-17β-ol-3-one, is asyntheticandrostanesteroid and a17α-alkylatedderivative of DHT. It is the 17α-methylated derivative ofstenbolone, as well as the δ1-isomer ofmethasterone (2α,17α-dimethyl-DHT). Related AAS includemestanolone andmethyl-1-testosterone.
