<unk> , also known as 17α-ethynyl-19-nor-δ9,11-testosterone or as 17α-ethynylestra-4,9,11-trien-17β-ol-3-one, as well as δ9,11-norethisterone or 17α-ethynyltrienolone (17α-ethynyltrenbolone), is a synthetic estrane steroid and a derivative of testosterone and 19-nortestosterone. It is structurally related to the anabolic steroid trenbolone (19-nor-δ9,11-testosterone; the non-17α-ethynylated analogue of<unk> , the progestogenic and androgenic steroid gestrinone (the 13β-ethyl variant or 18-methyl derivative of<unk> , and the anabolic steroid tetrahydrogestrinone (the 18-methyl and 17α-ethyl variant of<unk> .
Norgestrienone
Lapisteride
Androstanolone enanthate
Quingestanol acetate
Norvinisterone
Segesterone acetate
Androstanolone propionate
Ethylestrenol