InChI=1S/C9H11N5O7S/c10-9-13-7-5(8(17)14-9)12-3(1-11-7)6(16)4(15)2-21-22(18,19)20/h1,4,6,15-16H,2H2,(H,18,19,20)(H3,10,11,13,14,17)