LNG02: Levonorgestrel EP Impurity B

LNG02: Levonorgestrel EP Impurity B

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Levonorgestrel EP Impurity B ;

13-Ethyl-17-hydroxy-18,19-dinor-17α-pregn-5(10)-en-20-yn-3-one ;

CAS # 19914-67-1 ;

C21H28O2 ;

MW: 312.45 ;