2-amino-9-(4-hydroxy-2-oxobutyl)-1,9-dihydro-6H-purin-6-one 6H-purin-6-one, 2-amino-1,9-dihydro-9-(4-hydroxy-2-oxobutyl)- InChI=1/C9H11N5O3/c10-9-12-7-6(8(17)13-9)11-4-14(7)3-5(16)1-2-15/h4,15H,1-3H2,(H3,10,12,13,17