InChI=1/C20H18Cl2N2O4S/c1-10-11(2)28-12(3)17(10)18(25)23-6-7-24-19(26)16(29-20(24)27)8-13-4-5-14(21)9-15(13)22/h4-5,8-9H,6-7H2,1-3H3,(H,23,25)/b16-8-/f/h23H 2A2D6CA63617F47B