Clostebol

Clostebol
Clostebol
Systematic (IUPAC) name
(8S,9S,10R,13S,14S,17S)-4-chloro-17-hydroxy-10,13-dimethyl- 1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
Clinical data
Pregnancy cat.  ?
Legal status  ?
Identifiers
CAS number 1093-58-9
ATC code None
PubChem CID 68947
DrugBank DB01521
ChemSpider 62171 YesY
UNII Z7D4G976SH YesY
KEGG D07731 YesY
Chemical data
Formula C19H27ClO2 
Mol. mass 322.869 g/mol
SMILES eMolecules & PubChem
 YesY(what is this?)  (verify)

Clostebol (INN), usually as the ester clostebol acetate, is a synthetic anabolic androgenic steroid. Clostebol is the 4-chloro derivative of the natural hormone testosterone.

It is a weak anabolic steroid which was used by athletes from the German Democratic Republic (East Germany). It is a version of testosterone that is chlorinated so as to prevent conversion to DHT while also rendering the chemical incapable of conversion to estrogen.

See also