InChI=1S/C10H14N4O9/c11-6-4(18)7(13-10(12-6)14-21)23-9-3(17)1(15)2(16)5(22-9)8(19)20/h1-3,5,9,15-18,21H,(H,19,20)(H3,11,12,13,14)