InChI=1/C20H18Cl2N2O4S/c1-11-8-13(5-7-16(11)28-20(2,3)19(25)26)27-10-17-23-18(24-29-17)12-4-6-14(21)15(22)9-12/h4-9H,10H2,1-3H3,(H,25,26)/p-1/fC20H17Cl2N2O4S/q-1 0AA6EF9A255CC489