4-hydroxytestosterone 4-hydroxytestosterone 4-hydroxytestosterone (4-oht), also known as 4,17β-dihydroxyandrost-4-en-3-one, is a synthetic anabolic-androgenic steroid (aas) and a derivative of testosterone that was never marketed. it was first patented by g.d. searle & company in 1955 and is testosterone with a hydroxy group at the four position. 4-oht has moderate anabolic, mild androgenic, and anti-aromatase properties and is similar to the steroid clostebol (4-chlorotestosterone). 4-hydroxytestosteroneclinical dataother names4,17β-dihydroxyandrost-4-en-3-one; androst-4-ene-4,17β-diol-3-one; desmethylenestebolidentifiers iupac name 4,17-dihydroxy-10,13-dimethyl-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-cyclopentaphenanthren-3-one cas number2141-17-5 npubchem cid160615drugbankdb01485 ychemspider141138 yunii912goz167tcomptox dashboard (epa)dtxsid80902477 chemical and physical dataformulac19h28o3molar mass304.430 g·mol−13d model (jsmol)interactive image smiles o=c4c(\o)=c2/(1cc3((o)cc31cc2)c)(c)cc4 inchi inchi=1s/c19h28o3/c1-18-10-8-15(20)17(22)14(18)4-3-11-12-5-6-16(21)19(12,2)9-7-13(11)18/h11-13,16,21-22h,3-10h2,1-2h3/t11-,12-,13-,16-,18+,19-/m0/s1 ykey:bqoijsimmidhmo-fbpkjdbxsa-n y ny (what is this?) (verify)