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7α-氰甲基7α-羟基雌烷-4, 9-二烯-酮7α- cyanomethyl-7β- hydroxyestra-4, 9-dien-one
repr.biol. TS57
17α-氰甲基 7β-羟基雌烷-4, 9-二烯-3-酮
repr.biol. cyanomethyl-17 (3-hydroxy-estra-4, 9-dien-3one)