Synonyms: | (6α,17α)-13-Ethyl-6,17-dihydroxy-18,19-dinorpregn-4-en-20-yn-3-one;Levonorgestrel EP impurity G;(6R,13S,17R)-13-ethyl-17-ethynyl-6,17-dihydroxy-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one;Levonorgestrel Impurity 7(Levonorgestrel EP Impurity G);Levonorgestrel EP IMP G;13-Ethyl-6alpha,17-dihydroxy-18,19-;18,19-Dinorpregn-4-en-20-yn-3-one, 13-ethyl-6,17-dihydroxy-, (6α,17α)- (9CI);6α-Hydroxy Levonorgestrel |