InChI=1/C9H8N4O6/c14-4-2(5(15)11-8(18)10-4)1-3-6(16)12-9(19)13-7(3)17/h1H2,(H3,10,11,14,15,18)(H3,12,13,16,17,19)/p-2/fC9H6N4O6/h10-13H/q-2 0134F0DE5F2311CA