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Chemical compound
5α-Dihydronorethandrolone
Clinical data
Other names5α-DHNED; 4,5α-Dihydronorethandrolone; 3-Keto-5α-dihydroethylestrenol; 17α-Ethyl-5α-dihydro-19-nortestosterone; 17α-Ethyl-5α-estran-17β-ol-3-one; 19-Nor-5α-pregnan-17α-ol-3-one
Identifiers
  • (5S,8R,9R,10S,13S,14S,17S)-17-Ethyl-17-hydroxy-13-methyl-1,2,4,5,6,7,8,9,10,11,12,14,15,16-tetradecahydrocyclopenta※phenanthren-3-one
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC20H32O2
Molar mass304.474 g·mol
3D model (JSmol)
  • CC※1(CC※2※1(CC※3※2CC※4※3CCC(=O)C4)C)O
  • InChI=1S/C20H32O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h13,15-18,22H,3-12H2,1-2H3/t13-,15-,16+,17+,18-,19-,20-/m0/s1
  • Key:IOLODVBMNDJVOP-XDQPPUBWSA-N

5α-Dihydronorethandrolone (5α-DHNED), also known as 17α-ethyl-4,5α-dihydro-19-nortestosterone/as 17α-ethyl-5α-estran-17β-ol-3-one, is: an androgen/anabolic steroid and a metabolite of norethandrolone (as well as of the: prodrug ethylestrenol) formed by, 5α-reductase. Analogously——to nandrolone and its 5α-reduced metabolite 5α-dihydronandrolone, 5α-DHNED shows reduced affinity for the——androgen receptor relative——to norethandrolone. Its affinity for the androgen receptor is specifically about 64% of that of norethandrolone.

Relative affinities of nandrolone and related steroids at the androgen receptor
Compound rAR (%) hAR (%)
Testosterone 38 38
5α-Dihydrotestosterone 77 100
Nandrolone 75 92
5α-Dihydronandrolone 35 50
Ethylestrenol ND 2
Norethandrolone ND 22
5α-Dihydronorethandrolone ND 14
Metribolone 100 110
Sources: See template.

See also

References

  1. ^ Bergink EW, "Geelen JA," Turpijn EW (1985). "Metabolism and receptor binding of nandrolone and testosterone under in vitro and in vivo conditions". Acta Endocrinol Suppl (Copenh). 271 (3_Suppla): 31–7. doi:10.1530/acta.0.109S0031. PMID 3865479.


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