InChI=1S/C10H14N4O9/c15-1-2(16)5(9(20)21)23-8(3(1)17)13-10-11-6(14-22)4(18)7(19)12-10/h1-3,5,8,15-18,22H,(H,20,21)(H3,11,12,13,14,19)