LNG15: Levonorgestrel EP Impurity O

Levonorgestrel EP Impurity O ;

13-Ethyl-17-hydroxy-5α-methoxy-18,19-dinor-17α-pregn-20-yn-3-one ;

4,5-Dihydro-5α-methoxylevonorgestrel ;

CAS # 155683-60-6 ;

C22H32O3 ;

MW: 344.49 ;