InChI=1S/C15H19N5O9/c1-2-3(21)4-11(25)17-10-5(16-4)12(26)19-15(18-10)20-13-8(24)6(22)7(23)9(29-13)14(27)28/h6-9,11,13,22-25H,2H2,1H3,(H,27,28)(H3,17,18,19,20,26)