Famciclovir Impurity 6

Chemical Name: 9,9'-(oxybis(3-(hydroxymethyl)butane-4,1-diyl))bis(2-amino-1,9-dihydro-6H-purin-6-one)

Synonym: formic acid compound with ((2R,3R,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-4,4-difluoro-3-hydroxytetrahydrofuran-2-yl)methyl dihydrogen phosphate (1:1)