Drostanolone

Drostanolone, or dromostanolone, is an anabolic–androgenic steroid (AAS) of the dihydrotestosterone (DHT) group which was never marketed. An androgen ester prodrug of drostanolone, drostanolone propionate, was formerly used in the treatment of breast cancer in women under brand names such as Drolban, Masteril, and Masteron. This has also been used non-medically for physique- or performance-enhancing purposes.

Drostanolone
Clinical data
Trade namesDrolban, Masteril, Masteron, others (all as drostanolone propionate)
Other namesDromostanolone; 2α-Methyl-4,5α-dihydrotestosterone; 2α-Methyl-DHT; 2α-Methyl-5α-androstan-17β-ol-3-one
Routes of
administration
Intramuscular injection (as drostanolone propionate)
Drug classAndrogen; Anabolic steroid
Legal status
Legal status
Identifiers
  • (2R,5S,8R,9S,10S,13S,14S,17S)-17-hydroxy- 2,10,13-trimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17- tetradecahydrocyclopenta[a]phenanthren-3-one
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.000.334
Chemical and physical data
FormulaC20H32O2
Molar mass304.474 g·mol−1
3D model (JSmol)
SMILES
  • C[C@@H]1C[C@]2([C@@H](CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@H]4O)C)CC1=O)C
  • InChI=1S/C20H32O2/c1-12-11-20(3)13(10-17(12)21)4-5-14-15-6-7-18(22)19(15,2)9-8-16(14)20/h12-16,18,22H,4-11H2,1-3H3/t12-,13+,14+,15+,16+,18+,19+,20+/m1/s1 N
  • Key:IKXILDNPCZPPRV-RFMGOVQKSA-N N
 NY (what is this?)  (verify)
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