(3E)-4-(2,6-dimethoxyphenyl)-1,1,1-trifluorobut-3-en-2-one 3-buten-2-one, 4-(2,6-dimethoxyphenyl)-1,1,1-trifluoro-, (3E)- InChI=1/C12H11F3O3/c1-17-9-4-3-5-10(18-2)8(9)6-7-11(16)12(13,14)15/h3-7H,1-2H3/b7-6