Methandriol Dipropionate CAS: 3593-85-9 MF: C26H40O4 MW: 416.6 What is Methandriol Dipropionate ? Methandriol dipropionate (brand names Arbolic, Durabolic, Or-Bolic, Probolik, Protabolin), or methylandrostenediol dipropionate, also known as 17α-methylandrost-5-ene-3,17-diol 3,17β-dipropionate, is a synthetic, injected anabolic-androgenic steroid (AAS) and a 17α-alkylated derivative of 5-androstenediol. Methandriol Dipropionate (M.D.) is a form of the water-dissolved Methandriol but Methandriol Dipropionate remains effective for a …