InChI=1/C16H13N2O6S/c1-18-12-4-3-11(9-14(12)24-16(18)19)25(20,21)17-10-2-5-13-15(8-10)23-7-6-22-13/h2-5,8-9H,6-7H2,1H3/q-1 E85FBA6D4AEB060E