Progesterone EP Impurity D

Chemical Name: 20α-Acetoxy-4-pregnen-3-one; 20α-Hydroxy-pregn-4-en-3-one Acetate ; (S)-1-((8S,9S,10R,13S,14S,17S)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethyl acetate ; (20S)-3-oxopregn-4-en-20-yl acetate,