The molecule is a progestin consisting of 17beta-propionylestra-4,9-dien-3-one substituted at position 17 by a methyl group. It has a role as a progestin, a progesterone receptor agonist and an antineoplastic agent. It is a 3-oxo-Delta(4) steroid and a 20-oxo steroid. It derives from a hydride of an estrane.
(8S,13S,14S,17S)-13,17-dimethyl-17-propanoyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one