?6-GESTODENEDelta6-GestodeneGestodene EP Impurity A32Z7XS5QMHGESTODENE IMPURITY A [EP IMPURITY]13-ethyl-17-hydroxy-18,19-dinor-17alpha-pregna-4,6,15-trien-20-yn-3-one(8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-8,9,10,11,12,13,14,17-octahydro-1H-cyclopenta[a]phenanthren-3(2H)-one