Methylclostebol, also known as 4-chloro-17α-methyltestosterone or as 4-chloro-17α-methylandrost-4-en-17β-ol-3-one, is a synthetic, orally active anabolic-androgenic steroid (AAS) and designer steroid that has been sold on the Internet as a "dietary supplement", but it has never been studied for medical use. It is the 17α-alkylated variant of clostebol (4-chlorotestosterone).
|Other names||Chloromethyltestosterone; CMT; 4-Chloro-17α-methyltestosterone; 4-Chloro-17α-methylandrost-4-en-17β-ol-3-one|
|Chemical and physical data|
|Molar mass||336.90 g·mol−1|
|3D model (JSmol)|
Rahnema, Crosnoe, and Kim (2015) reported that German athletes used methylclostebol as a performance enhancing drug in the 1960s and 1970s, but this has not been substantiated. The compound is listed as a banned anabolic agent by the World Anti-Doping Agency.
- Rahnema CD, Crosnoe LE, Kim ED (2015). "Designer steroids - over-the-counter supplements and their androgenic component: review of an increasing problem". Andrology. 3 (2): 150–5. doi:10.1111/andr.307. PMID 25684733. S2CID 6999218.
- Pope HG, Wood RI, Rogol A, Nyberg F, Bowers L, Bhasin S (2014). "Adverse health consequences of performance-enhancing drugs: an Endocrine Society scientific statement". Endocr. Rev. 35 (3): 341–75. doi:10.1210/er.2013-1058. PMC 4026349. PMID 24423981.
- Rahnema, C. D.; Crosnoe, L. E.; Kim, E. D. (2015). "Designer steroids - over-the-counter supplements and their androgenic component: Review of an increasing problem". Andrology. 3 (2): 150. doi:10.1111/andr.307. PMID 25684733. S2CID 6999218.
- Lootens, L., Van Eenoo, P., Pozo Mendoza, O. J., Meulemans, P., Leroux-Roels, G., & Delbeke, F. (2010). Application of in vivo urinary steroid detection in uPA+/+-SCID chimeric mice. In 28th Cologne workshop on Dope Analysis (Manfred Donike workshop) (Vol. 18, pp. 52-61). Sportverlag Strauss.
- "World Anti-Doping Code: International Standard Prohibited List" (PDF). January 2017.