InChI=1/C21H18F2O3S/c1-13-10-15(6-9-21(13)26-2)18-12-20(23)19(22)11-17(18)14-4-7-16(8-5-14)27(3,24)25/h4-12H,1-3H3 457647EB5D3336E5