Chlormadinone acetate Synonyms: 17-(Acetyloxy)-6-chloropregna-4, 6-diène-3, 20-dione CAS: 302-22-7 MF: C23H29ClO4 MW: 404.93 Apparence: White or slightly yellow crystalline powder Assay: 99% Usage: Orally active progesteron with antiandrogenic activity; Has been used in combinations as an oral contraceptive. Progestogen; Antineoplastic (hormonal)