InChI=1/C18H14F2O5S/c1-18(22)16(10-3-5-14(6-4-10)26(2,23)24)15(17(21)25-18)11-7-12(19)9-13(20)8-11/h3-9,22H,1-2H3/t18-/m1/s1 0986E79D5C2D8328