SMILES: C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=CC5=C(C[C@]34C)C=NO5
Description: The molecule is a 17beta-hydroxy steroid and a terminal acetylenic compound. It has a role as an anti-estrogen and an estrogen antagonist. It derives from a hydride of a pregnane.