Chemical Name : Rac-13-ethyl-6β,17-dihydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one (as per EP)

Smiles : CC[C@@]12[C@](CC[C@@]2(O)C#C)([H])[C@]3([H])C[C@@]([H])(O)C4=CC(CC[C@]4([H])[C@@]3([H])CC1)=O