InChI=1/C15H11Cl2NO3/c1-18-11-6-5-8(7-12(11)21-15(18)20)14(19)13-9(16)3-2-4-10(13)17/h2-7,14,19H,1H3/t14-/m0/s1 2A3B25E1F09215BB