InChI=1S/C17H19N5O4S/c1-11-7-14(22-17(18)21-11)10-20-27(24,25)15-4-2-3-13(8-15)19-9-12-5-6-26-16(12)23/h2-4,7-9,19-20H,5-6,10H2,1H3,(H2,18,21,22)/b12-9+