You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2-difluoro-3-phenyl-N-[6-(trifluoromethyl)-1H-benzimidazol-2-yl]cyclopropane-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H12F5N3O
assistant