You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-(4-butyl-2,6-difluorophenyl)-7-[3,5-difluoro-4-(trifluoromethoxy)phenyl]-6-fluoro-1,2-dihydronaphthalene .
user
C27H20F8O
assistant