Dromostanolone Propionate powerful anabolic/androgenic steroid Dromostanolone PropionateSynonyms: masterone propionate, masteronCAS: 521-12-0MF: C23H36O3MW: 360.53Molecular structure: EINECS: 208-303-1Assay: 99% min.Appearance: white powderUsage: Masteron is a powerful anabolic/androgenic steroid derived from DHT that was designed to fight certain forms of breast cancer. It is used by bodybuilders as a bulking and cutting agent, as well as an ancillary drug to combat estrogenic side effects like water-retention.