Chemical Name:6beta-Hydroxy-3-oxo-19-nor-17alpha-pregn-4-en-20-yn-17-yl acetate (as per EP) ; (6R,8R,9S,10R,13S,14S,17R)-17-ethynyl-6-hydroxy-13-methyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate (as per USP)
