testosterone caproate testosterone caproate testosterone caproate (tca), also known as testosterone hexanoate, is an androgen and anabolic steroid and a testosterone ester that is no longer marketed. it was formerly available as a component of omnadren 250, along with testosterone isocaproate, testosterone phenylpropionate, and testosterone propionate, but this formulation has since been discontinued. parenteral durations of androgens/anabolic steroids medicationformmajor brand namesduration testosteroneaqueous suspensionandronaq, sterotate, virosterone2–3 days testosterone propionateoil solutionandroteston, perandren, testoviron3–4 days testosterone phenylpropionateoil solutiontestolent8 days testosterone isobutyrateaqueous suspensionagovirin depot, perandren m14 days mixed testosterone estersaoil solutiontriolandren10–20 days mixed testosterone estersboil solutiontestosid depot14–20 days testosterone enanthateoil solutiondelatestryl14–28 days testosterone cypionateoil solutiondepovirin14–28 days mixed testosterone esterscoil solutionsustanon 25028 days testosterone undecanoateoil solutionaveed, nebido100 days testosterone buciclatedaqueous suspension20 aet-1, cdb-1781e90–120 days nandrolone phenylpropionateoil solutiondurabolin10 days nandrolone decanoateoil solutiondeca durabolin21–28 days methandriolaqueous suspensionnotandron, protandren8 days methandriol bisenanthoyl acetateoil solutionnotandron depot16 days metenolone acetateoil solutionprimobolan3 days metenolone enanthateoil solutionprimobolan depot14 days note: all are via i.m. injection. footnotes: a = tp, tv, and tue. b = tp and tkl. c = tp, tpp, tica, and td. d = studied but never marketed. e = developmental code names. sources: see template. testosterone caproateclinical datatrade namesomnadren 250other namestca; testosterone hexanoate; 17β-hydroxyandrost-4-en-3-one hexanoate; 3-oxoandrost-4-en-17β-yl hexanoateroutes ofadministrationintramuscular injectionidentifiers iupac name phenanthren-17-yl] hexanoate cas number10312-45-5pubchem cid112100chemspider100500unii7cc0l7j83hcomptox dashboard (epa)dtxsid10908205 echa infocard100.030.615 chemical and physical dataformulac25h38o3molar mass386.576 g·mol−13d model (jsmol)interactive image smiles cccccc(=o)o1cc21(cc32ccc4=cc(=o)cc34c)c inchi inchi=1s/c25h38o3/c1-4-5-6-7-23(27)28-22-11-10-20-19-9-8-17-16-18(26)12-14-24(17,2)21(19)13-15-25(20,22)3/h16,19-22h,4-15h2,1-3h3/t19-,20-,21-,22-,24-,25-/m0/s1key:wigtzvoqgifmav-bkwlfhpqsa-n gallery the russian testosterone hexanoate 100 mg (front) the russian testosterone hexanoate 100 mg (back)