You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-(2-hydroxyethylamino)-2-(trifluoromethyl)phenyl]-N-pyridin-3-yl-1H-benzimidazole-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H18F3N5O2
assistant