InChI=1/C12H9ClN4O4/c13-10-2-1-7(4-15-10)5-16-6-8(17(20)21)3-9(11(14)18)12(16)19/h1-4,6H,5H2,(H2,14,18)/f/h14H2 BFECA472DE12AB0C