SMILES: CC(=O)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)C=C[C@]34C)C
Description: The molecule is a 3-oxo Delta(4)-steroid that is progesterone which has been oxidised to introduce a double bond between positions 1 and 2. It is a 20-oxo steroid and a 3-oxo-Delta(1),Delta(4)-steroid. It derives from a progesterone. It derives from a hydride of a steroid fundamental parent.