InChI=1S/C15H10Cl2N4O9S/c1-5-10(13(17)20(23)6(2)11(5)16)14-18-15(29-19-14)7-3-8(21(24)25)12(22)9(4-7)30-31(26,27)28/h3-4,22H,1-2H3,(H,26,27,28)