InChI=1S/C18H10Cl2N4O8S2/c19-9-11-15(31-13-7(23-11)3-1-5(21)17(13)33(25,26)27)10(20)12-16(9)32-14-8(24-12)4-2-6(22)18(14)34(28,29)30/h1-4H,21-22H2,(H,25,26,27)(H,28,29,30)