InChI=1/C12H12N2O5S/c15-12(14-13-9-3-4-20(16,17)6-9)8-1-2-10-11(5-8)19-7-18-10/h1-2,5H,3-4,6-7H2,(H,14,15)/b13-9+/f/h14H F5D09ED3E0A92170