SMILES: CC[C@@]12CC[C@@H]3[C@@H]([C@H]1CC[C@@]2(C#C)O)CCC4=CC(=O)CC[C@@H]34
Description: The molecule is a 17alpha-hydroxy steroid and a terminal acetylenic compound. It derives from a norgestrel. It is an enantiomer of a levonorgestrel.