InChI=1S/C15H19N5O9/c21-2-1-5(22)4-3-16-11-6(17-4)12(26)19-15(18-11)20-13-9(25)7(23)8(24)10(29-13)14(27)28/h7-10,13,21,23-25H,1-3H2,(H,27,28)(H3,16,18,19,20,26)