Cyproterone Acetate EP Impurity J

Chemical Name: 6α,7α-Epoxy-3,20-dioxo-1β,2β-dihydro-3′Hcyclopropa[1,2]pregna-1,4-dien-17-yl acetate 

Synonym: β-Apo-oxytetracycline ; (3S,4S,5R)-4-((R)-4,5-dihydroxy-9-methyl-3-oxo-1,3-dihydronaphtho[2,3-c]furan-1-yl)-3-(dimethylamino)-2,5-dihydroxy-6-oxocyclohex-1-ene-1-carboxamide