Fulvestrant Impurity 2

Chemical Name: (7S,8R,9S,13S,14S,17S)-3-hydroxy-13-methyl-7-(9-((methylsulfonyl)oxy)nonyl)-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl acetate

Synonym: N-(2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)amino)phenyl)-3-((2-((2-(dimethylamino)ethyl)(methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl)pyrimidin-2-yl)amino)phenyl)(2-oxobut-3-en-1-yl)amino)propanamide