InChI=1S/C9H11N5O6S/c1-3(20-21(17,18)19)6(15)4-2-11-7-5(12-4)8(16)14-9(10)13-7/h2-3,6,15H,1H3,(H,17,18,19)(H3,10,11,13,14,16)