The molecule is progesterone in which the hydrogen at the 15beta position is substituted by a hydroxy group. It is a 15beta-hydroxy steroid, a 3-oxo-Delta(4) steroid and a 20-oxo steroid. It derives from a progesterone.
(8R,9S,10R,13S,14S,15R,17S)-17-acetyl-15-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one