SMILES: C[C@H]1C[C@H]2[C@@H]3CCC4=CC(=O)CC[C@@]4([C@H]3CC[C@@]2([C@H]1C(=O)C)C)C
Description: The molecule is a 3-oxo Delta(4)-steroid that is progesterone substituted by a beta-methyl group at position 16. It is a 20-oxo steroid and a 3-oxo-Delta(4) steroid. It derives from a progesterone. It derives from a hydride of a pregnane.