dihydrotestosterone formate dihydrotestosterone formate dihydrotestosterone formate, also known as androstanolone formate or stanolone formate, as well as 5α-dihydrotestosterone 17β-formate, is a synthetic androgen and anabolic steroid and a dihydrotestosterone ester that was never marketed. dihydrotestosterone formateclinical dataother namesandrostanolone formate; stanolone formate; 5α-dihydrotestosterone 17β-formate; 17β‐(formyloxy)‐5α‐androstane‐3‐oneroutes ofadministrationintramuscular injectionidentifiers iupac name phenanthren-17-yl] formate cas number4589-90-6 ypubchem cid20837715chemspider20141229uniixlp4j4hxt5chemical and physical dataformulac20h30o3molar mass318.457 g·mol−13d model (jsmol)interactive image smiles c12ccc(=o)c1cc32cc4(3cc4oc=o)c inchi inchi=1s/c20h30o3/c1-19-9-7-14(22)11-13(19)3-4-15-16-5-6-18(23-12-21)20(16,2)10-8-17(15)19/h12-13,15-18h,3-11h2,1-2h3/t13-,15-,16-,17-,18-,19-,20-/m0/s1key:zqsxnbhxkjqhbh-vhudcfpwsa-n