Etonogestrel Impurity 12

Chemical Name: (8S,9R,10R,13S,14S,17R)-13-ethyl-17-ethynyl-10,17-dihydroxy-11-methylene-1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one

Smile: O[C@@]1(C#C)CC[C@@]([C@]1(CC)C2)([H])[C@]3([H])CCC4=CC(CC[C@@]4(O)[C@@]3([H])C2=C)=O