InChI=1/C20H14Cl2N3O3S/c1-28-18-10-16(22)19(11-15(18)21)29(26,27)24-14-7-5-13(6-8-14)17-12-25-9-3-2-4-20(25)23-17/h2-12H,1H3/q-1 1F992BFB4B66FC9E