ESX11: Etoposide EP Impurity K

Di-4'-O-Desmethyl Epipodophyllotoxin ;

9,9'-Oxybis[(5R,5aR,8aR,9S)-5-(4-hydroxy-3,5-dimethoxyphenyl)-5,8,8a,9-tetrahydroisobenzofuro[5,6-f][1,3]benzodioxol-6(5aH)-one] ;

C42H38O15 ;
Mol. Wt.: 782.74 ;