Epitiostanol DescriptionEpitiostanol, sold under the brand name Thiodrol, is an injected antiestrogen and anabolic–androgenic steroid of the dihydrotestosterone group which was described in the literature in 1965 and has been marketed in Japan as an antineoplastic agent for the treatment of breast cancer since 1977. Formula: C19H30OS Molar mass: 306.506 g/mol ChemSpider ID: 391989 Trade name: Thiodrol ChemSpider ID: 391989 PubChem CID: 3243   The Epitiostanol, with the CAS registry number 2363-58-8, is also known as 2α,3α-Epithio-5α-androstan-17β-ol. It belongs to the product categories of Inhiitors; Intermediates & Fine Chemicals; Pharmaceuticals; Steroids; Sulfur & Selenium Compounds. This chemical's molecular formula is C19H30OS and molecular weight is 306.51. What's more, its systematic name is (2α,3α,5α,17β)-2,3-Epithioandrostan-17-ol. Its classification code is Reproductive Effect. This chemical is is an anabolic steroid. It is used in therapy of advanced breast cancer.