<unk> , also known as 17α-vinyl-δ5(10)-19-nortestosterone or as 17α-vinylestr-5(10)-en-17β-ol-3-one, is a synthetic estrane steroid and a derivative of testosterone and 19-nortestosterone. Analogues of<unk>  include norvinisterone (17α-vinyl-19-nortestosterone) and vinyltestosterone (17α-vinyltestosterone).
Norgesterone
Progestogen
Progestogen 
Androgen
Methylestradiol
Vinyltestosterone
Progesterone
Progesterone 