TLF40: Tadalafil Desmethylene Impurity

TLF40: Tadalafil Desmethylene Impurity

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Tadalafil Desmethylene Impurity ;

(6R,12aR)-6-(3,4-Dihydroxyphenyl)-2-methyl-2,3,6,7,12,12a-hexahydro pyrazino [1′,2′:1,6]-pyrido[3,4-b]indole-1,4-dione ;

CAS # 171489-03-5 ;

C21H19N3O4 ;

MW: 377.39 ;