InChI=1/C8H10N2O4S/c1-6-2-3-7(9-4-6)10-15(13,14)5-8(11)12/h2-4H,5H2,1H3,(H,9,10)(H,11,12)/p-1/fC8H9N2O4S/h9H/q-1 2A4DD35852652CC7