S-23
Legal status
Legal status
Identifiers
  • (2S)-N-(4-cyano-3-trifluoromethylphenyl)-3-(3-fluoro-4-chlorophenoxy)-2-hydroxy-2-methyl-propanamide
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
Chemical and physical data
FormulaC18H13ClF4N2O3
Molar mass416.76 g·mol−1
3D model (JSmol)
  • C[C@](COC1=CC(=C(C=C1)Cl)F)(C(=O)NC2=CC(=C(C=C2)C#N)C(F)(F)F)O
  • InChI=1S/C18H13ClF4N2O3/c1-17(27,9-28-12-4-5-14(19)15(20)7-12)16(26)25-11-3-2-10(8-24)13(6-11)18(21,22)23/h2-7,27H,9H2,1H3,(H,25,26)/t17-/m0/s1 ☒N
  • Key:SSFVOEAXHZGTRJ-KRWDZBQOSA-N ☒N
 ☒NcheckY (what is this?)  (verify)

S-23 is an investigational selective androgen receptor modulator (SARM) developed by GTX, Inc as a potential male hormonal contraceptive. It binds to the androgen receptor more strongly than older drugs such as andarine with a Ki of 1.7 nM, and in animal studies it showed both a good ratio of anabolic to androgenic effects, and dose-dependent suppression of spermatogenesis with spontaneous recovery after cessation of treatment.[1][2]

References