Mesterolone Alias: Proviron CAS No: 1424-00-6 Einec Non: 215-836-3 MF: C20H32O2 MW:304.47 Pureté: 99% Apparence: white crystalloid powder,soluble in acetone, ethanol, ethyl ether, ethyl acetate, insoluble dans l'eau. Mesterolone is an oral anabolic steroid, a synthetic product of the male hormone testosterone. The drug has shown value in treating men with mental health issues, such as depression, anxiety and bipolar …