2,2,2-trifluoro-1-[5-hydroxy-2-(trifluoromethyl)-1-benzofuran-3-yl]ethanone InChI=1/C11H4F6O3/c12-10(13,14)8(19)7-5-3-4(18)1-2-6(5)20-9(7)11(15,16)17/h1-3,18 ethanone, 2,2,2-trifluoro-1-[5-hydroxy-2-(trifluoromethyl)-3-benzofuranyl]-