TLF78: Tadalafil Impurity 18

(6R,12aR)-6-(1,3-Benzodioxol-5-yl)-2-butyl-2,3,6,7,12,12a-hexahydropyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione ;

CAS # 171596-31-9 ;

C25H25N3O4 ;
Mol. Wt.: 431.48 ;