1,1,1-trifluoro-4-(2-furyl)but-3-en-2-one 3-buten-2-one, 1,1,1-trifluoro-4-(2-furanyl)- InChI=1/C8H5F3O2/c9-8(10,11)7(12)4-3-6-2-1-5-13-6/h1-5H/b4-3