Nandrolone undecanoate

Nandrolone undecanoate (brand names Dynabolon, Dynabolin, Psychobolan), or nandrolone undecylate, also known as 19-nortestosterone 17β-undecanoate, is a synthetic androgen and anabolic steroid and nandrolone ester that was developed in the 1960s and was previously marketed in France, Germany, Italy, and Monaco but has since been discontinued and is now no longer known to be available.