InChI=1/C19H20N4O4S/c1-21-15(11-14-6-4-10-28-14)20-17-16(21)18(24)22(7-9-26-2)19(25)23(17)12-13-5-3-8-27-13/h3-6,8,10H,7,9,11-12H2,1-2H3 6FBD1E5F5B97B6C6