You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-[2-(1-bromopropyl)-7-chloro-5-fluoro-1-benzofuran-4-yl]-1-methyl-6-(trifluoromethyl)pyridin-2-one ?
user
C18H13BrClF4NO2
assistant