You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[6-chloro-2-(chloromethyl)-5-fluorobenzimidazol-1-yl]-N-propan-2-ylpropanamide by IUPAC nomenclature, provide its molecular formula.
user
C14H16Cl2FN3O
assistant