13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,15-dien-20yn-3-one ; (17α)-13-Ethyl-17-hydroxy-18,19-dinorpregna-4,15-dien-20-yn-3-one ; CAS # 60282-87-3 ;

Δ6-Gestodene ; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,6,15-trien-20-yn-3-one ;

Δ5(10)-Festodene ; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5(10),15-dien-20-yn-3-one ;

2-Isopropanol Gestodene ; 13-Ethyl-17-hydroxy-2α-(1-hydroxy-1-methylethyl)-18,19-dinor-17α-pregna-4,15-dien-20-yn-3-one ;

6β-Hydroxy Gestodene ; 13-Ethyl-6β,17-dihydroxy-18,19-dinor-17α-pregna-4,15-dien-20-yn-3-one ; (6R,8R,9S,10R,13S,14S,17R)-13-Ethyl-17-ethynyl-6,17-dihydroxy-6,7,8,9,10,11,12,13,14,17-decahydro-1H-cyclopenta[a]phenanthren-3(2H)-one ;

6-Keto Gestodene ; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-4,15-dien-20-yne-3,6-dione ; (8R,9S,10R,13S,14S,17R)-13-Ethyl-17-ethynyl-17-hydroxy-7,8,10,11,12,13,14,17-octahydro-1H-cyclopenta[a]phenanthrene-3,6(2H,9H)-dione ;

15α-Acetoxy Gestodene ; 13-Ethyl-17-hydroxy-3-oxo-18,19-dinor-17α-pregn-4-en-20-yn-15α-yl acetate ; CAS # 267650-77-1 ;

A-Aromatic Gestodene ; 13-Ethyl-3-methoxy-18,19-dinor-17α-pregna-1,3,5(10),15-tetraen-20-yn-17-o1 ; CAS # 1421283-59-1 ;

Diethinyl Gestodene ; 13-Ethyl-3-ethynyl-18,19-dinor-17α-pregna-3,5,15-trien-20-yn-17-o1 ; (8R,9S,10R,13S,14S,17R)-13-Ethyl-3,17-diethynyl-2,7,8,9,10,11,12,13,14,17-decahydro-1H-cyclopenta[a]phenanthren-17-ol ;

4,5-Dihydro-5α-Methoxy Gestodene ; 13-Ethyl-17-hydroxy-5-methoxy-18,19-dinor-5α,17α-pregn-15-en-20-yn-3-one ;

Gestodene Ketal ; 13-Ethylspiro(18,19-dinor-17α-pregna-5,15-dien-20-yne-3,2′-[1,3]dioxolan)-17-ol and-13-ethylspiro(18,19-dinor-17α-pregna-5(10),15-dien-20-yne-3,2′-[1,3]dioxolan)-17-ol ; CAS # 104933-99-5 ;

Aromatic 6-Keto Gestodene ; 13-Ethyl-3,17-dihydroxy-18,19-dinor-17α-pregna-1,3,5(10),15-tetraen-20-yn-6-one ; CAS # 1421283-61-5 ;

Δ5(6)-Gestodene ; 13-Ethyl-17-hydroxy-18,19-dinor-17α-pregna-5,15-dien-20-yn-3-one ;