InChI=1/C9H7F2N2O6S/c1-4(9(14)15)20(18,19)12-7-3-8(13(16)17)6(11)2-5(7)10/h2-4H,1H3,(H,14,15)/q-1/p-1/t4-/m0/s1/fC9H6F2N2O6S/q-2 2BD590320CAE372F