The molecule is a 16beta-hydroxy steroid that is estra-1,3,5(10)-trien-16beta-ol substituted by a methoxy group at position 3. It derives from a hydride of an estrane.
(8S,9S,13R,14S,16S)-3-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-16-ol