InChI=1/C13H12ClN3O4/c1-13(2)7(8(13)12(19)20)11(18)15-9-5(14)3-4-6-10(9)17-21-16-6/h3-4,7-8H,1-2H3,(H,15,18)(H,19,20)/p-1/t7-,8-/m1/s1/fC13H11ClN3O4/h15H/q-1 DAD85EA97D8AF958