<unk>  (brand names Lenen, Novoderm, Varlane, Vaspit), or<unk>  21-butylate, is a synthetic glucocorticoid corticosteroid which is marketed in Germany, Belgium, Luxembourg, Spain, and Italy. Chemically, it is the<unk>  ester derivative of<unk> . It was patented in 1971 and approved for medical use in 1977.
Fluocortin butyl
Androgen ester
Estradiol phenylpropionate
4-Methylaminorex
Anordiol
BTG 
Prolene
Catechol estrogen