Levonorgestrel
C21H28O2
312,45
18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)-(−)-.
(−)-13-Etil-17-hidroxi-18,19-dinor-17α-pregn-4-en-20-in-3-ona [797-63-7]
18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-17-hydroxy-, (17α)-(−)-.
(−)-13-Etil-17-hidroxi-18,19-dinor-17α-pregn-4-en-20-in-3-ona [797-63-7]