InChI=1/C12H7Cl2N3O3S/c13-7-3-6-4-11(15-12(6)8(14)5-7)21(19,20)10-2-1-9(18)16-17-10/h1-5,15H,(H,16,18)/p-1/fC12H6Cl2N3O3S/q-1 6A3BBDA7E27A8D1B