You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 7-[4-[3-hydroxy-2-methyl-4-(3-methylbutanoyl)phenoxy]butoxy]-4-(trifluoromethyl)chromen-2-one by IUPAC nomenclature, provide its molecular formula.
user
C26H27F3O6
assistant