Methyldrostanolone -Superdrol Synonyms: 2,17-Dimethyldihydrotestosterone; 17-hydroxy-2,17-dimethylandrostan-3-one CAS: 3381-88-2 Assay: 97% min. Molecular Formula: C19H30O2 Molecular Weight: 290.44 Character: White crystalline powder. Usage: pharmaceutical material, Steroid hormone, Anabolin. As a male hormone and anabolic hormones.