InChI=1/C12H8Cl2N4O3/c13-8-4-6(18(19)20)5-9(14)10(8)21-12-7(11(15)16)2-1-3-17-12/h1-5H,(H3,15,16)/p+1/fC12H9Cl2N4O3/h15-16H2/q+1 B8AF120C29C59B68