InChI=1/C11H10NO5S2/c1-6-9(11(13)14)10(7(2)17-6)19(15,16)12-8-4-3-5-18-8/h3-5H,1-2H3,(H,13,14)/q-1/p-1/fC11H9NO5S2/q-2 89751364193A99F0