You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[3-(benzimidazol-1-yl)propyl]-1-(4-fluorophenyl)-5-(trifluoromethyl)triazole-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C20H16F4N6O
assistant