<unk>  (MENT dione), or<unk><unk> -19-norandrost-4-ene-3,17-dione, also known as trestione, as well as<unk><unk> estr-4-ene-3,17-dione, is a synthetic anabolic-androgenic steroid (AAS) and a derivative of<unk> -nortestosterone (nandrolone). It may act as a prohormone of trestolone <unk><unk> -19-nortestosterone; MENT). MENT dione has been sold on the Internet under the name Mentabolan as a "dietary supplement".
7α-Methyl-19-norandrostenedione
3α-Androstanediol
3β-Androstanediol
11β-Methyl-19-nortestosterone
5α-Dihydroethisterone
8,9-Dehydroestrone
16α-Hydroxyestrone
19-Nor-5-androstenediol