2-ISOPROPANOL GESTODENE2-Isopropanol gestodeneGestodene EP Impurity CAQ88X84ERUGESTODENE IMPURITY C [EP IMPURITY](2S,8R,10R,13S,17R)-13-ethyl-17-ethynyl-17-hydroxy-2-(1-hydroxy-1-methyl-ethyl)-1,2,6,7,8,9,10,11,12,14-decahydrocyclopenta[a]phenanthren-3-one(2S,8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-2-(2-hydroxypropan-2-yl)-1,2,6,7,8,9,10,11,12,13,14,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one13-ethyl-17-hydroxy-2alpha-(1-hydroxy-1-methylethyl)-18,19-dinor-17alpha-pregna-4,15-dien-20-yn-3-one