5α-dihydronormethandrone 5α-dihydronormethandrone 5α-dihydronormethandrone (5α-dhnmt; developmental code name ru-575), also known as 17α-methyl-4,5α-dihydro-19-nortestosterone or as 17α-methyl-5α-estran-17β-ol-3-one, is an androgen/anabolic steroid and a likely metabolite of normethandrone formed by 5α-reductase. analogously to nandrolone and its 5α-reduced metabolite 5α-dihydronandrolone, 5α-dhnmt shows reduced affinity for the androgen receptor relative to normethandrone. its affinity for the androgen receptor is specifically about 33 to 60% of that of normethandrone. relative affinities (%) of normethandrone and metabolites compoundprarergrmrshbgcbg normethandrone75–125125–150<11–5<1 ? ? 5α-dihydronormethandrone15–2550–75 ?<1 ? ? ? notes: values are percentages (%). reference ligands (100%) were progesterone for the pr, testosterone for the ar, estradiol for the er, dexamethasone for the gr, and aldosterone for the mr. sources: see template. 5α-dihydronormethandroneclinical dataother names5α-dhnmt; ru-575; 17α-methyl-4,5α-dihydro-19-nortestosterone; 17α-methyl-5α-estran-17β-ol-3-oneidentifiers iupac name (5s,8r,9r,10s,13s,14s,17s)-17-hydroxy-13,17-dimethyl-1,2,4,5,6,7,8,9,10,11,12,14,15,16-tetradecahydrocyclopentaphenanthren-3-one cas number6424-04-0 ypubchem cid22792507uniijhh2ft7bluchemical and physical dataformulac19h30o2molar mass290.447 g·mol−13d model (jsmol)interactive image smiles c12cc3(1cc2(c)o)cc43ccc(=o)c4 inchi inchi=mdxrcpmwsfwiez-movwyjjtsa-nkey:1s/c19h30o2/c1-18-9-7-15-14-6-4-13(20)11-12(14)3-5-16(15)17(18)8-10-19(18,2)21/h12,14-17,21h,3-11h2,1-2h3/t12-,14-,15+,16+,17-,18-,19-/m0/s1