QPR04: Quinapril EP Impurity D

QPR04: Quinapril EP Impurity D

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Ethyl (2S)-2-[(3S,11aS)-3-methyl-1,4-dioxo-1,3,4,6,11,11ahexahydro-2H-pyrazino[1,2-b]isoquinolin-2-yl]-4-phenylbutanoate ;

Quinapril USP RC A ;

Quinapril Diketopiperazine ;

CAS # 103733-49-9 ;

C25H28N2O4 ;

MW: 420.5 ;