InChI=1/C13H11ClN2O5/c14-7-2-9-10(21-4-11(17)15-9)3-8(7)16-12(18)5-1-6(5)13(19)20/h2-3,5-6H,1,4H2,(H,15,17)(H,16,18)(H,19,20)/p-1/t5-,6-/m1/s1/fC13H10ClN2O5/h15-16H/q-1 DCECC41EF3233317