Cyproterone Acetate EP Impurity A

Chemical Name: 3,20-Dioxo-1β,2β-dihydro-3′H-cyclopropa-[1,2]pregna-1,4,6-trien-17-yl acetate

Synonym: (3S,4S,8S,9S,10R,13R,14S,17R)-4,10,13-trimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol