InChI=1/C12H8ClN3O4/c13-8-3-1-2-7(6-8)4-5-9-14-11(17)10(16(19)20)12(18)15-9/h1-6H,(H2,14,15,17,18)/p-1/b5-4+/fC12H7ClN3O4/h14H/q-1 0D828E875DD6AA9D