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Abandoned drugs
7α-Methylestradiol
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7α-Methylestradiol

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Not to be confused with Methylestradiol.
7α-Methylestradiol
7α-Methylestradiol.svg
Clinical data
Other names 7α-Methyl-E2; 7α-Me-E2; 7α-Methylestra-1,3,5(10)-triene-3,17β-diol
Drug class Estrogen
Identifiers
  • (7R,8R,9S,13S,14S,17S)-7,13-Dimethyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol
CAS Number
PubChem CID
UNII
Chemical and physical data
Formula C19H26O2
Molar mass 286.415 g·mol−1
3D model (JSmol)
  • [H][C@@]12CC[C@H](O)[C@@]1(C)CC[C@]1([H])C3=CC=C(O)C=C3C[C@@H](C)[C@@]21[H]
  • InChI=1/C19H26O2/c1-11-9-12-10-13(20)3-4-14(12)15-7-8-19(2)16(18(11)15)5-6-17(19)21/h3-4,10-11,15-18,20-21H,5-9H2,1-2H3/t11-,15-,16+,17+,18-,19+/s2
  • Key:DXWWYJWUFULMAP-BQXDHOISNA-N

7α-Methylestradiol (7α-Me-E2), also known as 7α-methylestra-1,3,5(10)-triene-3,17β-diol, is a synthetic estrogen and an active metabolite of the androgen/anabolic steroid trestolone. It is considered to be responsible for the estrogenic activity of trestolone. The compound shows about the same affinity for the estrogen receptor as estradiol.

Relative affinities (%) of 7α-methylestradiol and related steroids
Compound PR AR ER GR MR SHBG CBG
Estradiol 2.6 7.9 100 0.6 0.13 8.7 <0.1
7α-Methylestradiol 1–3 15–25 101 <1 <1 ? ?
Trestolone 50–75 100–125 ? <1 ? ? ?
Values are percentages (%). Reference ligands (100%) were progesterone for the PR, testosterone for the AR, E2 for the ER, DEXA for the GR, aldosterone for the MR, DHT for SHBG, and cortisol for CBG.

See also




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