Gestodene STD-(8R,9S,10R,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-6,7,8,9,10,11,12,13,14,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one; (17α)-13-Ethyl-17-hydroxy-18,19-Dinorpregna-4,15-dien-20-yn-3-one; (8R,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,9,10,11,12,14-decahydrocyclopenta[a]phenanthren-3-one
Gestodene EP-Impurity-A-13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,6,15-trien-20-yn-3-one; Δ6-Gestodene
Gestodene EP-Impurity-B-(8R,9S,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,4,6,7,8,9,11,12,13,14,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one; (17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-5,15-dien-20-yn-3-one; ∆-5(10)-Gestodene; 3-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5(10),15-dien-20-yn-3-one; Δ5(10)-Gestodene
Gestodene EP-Impurity-C-(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-one
Gestodene EP-Impurity-L-(17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-5(6),15-dien-20-yn-3-one; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5,15-dien-20-yn-3-one; ∆-5(6)-Gestodene