Aciclovir EP Impurity K

Chemical Name: 2,2′-(Methylenediazanediyl)bis[9-[(2-hydroxyethoxy)methyl]-1,9-dihydro-6H-purin-6-one] (as per EP) ; Bis({9-[(2-hydroxyethoxy)methyl]guanine}-N2-yl)methane (as per USP)

Synonym: Bis-Acyclovir (USP) ; Valaciclovir EP Impurity L ; Acyclovir N-Methylene Dimer