SMILES: C[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2C(=O)C[C@]4([C@H]3CC[C@@]4(C(=O)C=O)O)C
Description: The molecule is a C21-steroid that is cortisone in which the 21-hydroxy group has been oxidised to the corresponding aldehyde. It is a 21-oxo steroid, a 17alpha-hydroxy steroid, a 20-oxo steroid, a 3-oxo-Delta(4) steroid, a C21-steroid, an 11-oxo steroid, a steroid aldehyde and a tertiary alpha-hydroxy ketone. It derives from a progesterone. It derives from a hydride of a 5alpha-pregnane.