InChI=1S/C16H20N4O4S/c1-11-15(12(2)24-19-11)25(22,23)20-8-5-13(6-9-20)16(21)18-14-4-3-7-17-10-14/h3-4,7,10,13H,5-6,8-9H2,1-2H3,(H,18,21)