Not Less Than - 95%
(8S,9S,10R,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-11-methylene-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one; 3-Keto-desogestrel;Desogestrel EP Impurity D