CAS NO:N/A||Chemical Formula: C9H13N5O4||Molecular Weight: 255.23400||Exact Mass: 255.09675||mixture of 2-amino-9-[[2-(hydroxyethoxy)methoxy]methyl]-1,9-dihydro-6H-purin-6-one and 2-amino-9-[[2-(hydroxymethoxy)ethoxy]methyl]-1,9-dihydro-6H-purin-6-one