InChI=1/C22H18N4O4S/c23-31(29,30)18-12-8-16(9-13-18)25-26-21-20-15(2-1-3-19(20)24-22(21)28)7-4-14-5-10-17(27)11-6-14/h1-13,24,27-28H,(H2,23,29,30)/b7-4+,26-25?/f/h23H2	22C688E870F77A13