InChI=1/C18H12Cl2N2O4/c19-12-3-1-2-11(16(12)20)17-21-13-7-10(4-5-14(13)26-17)22-8-9(18(24)25)6-15(22)23/h1-5,7,9H,6,8H2,(H,24,25)/p-1/t9-/m1/s1/fC18H11Cl2N2O4/q-1 79505EBFA3C9C13D