You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-(2-bromo-6-methylphenyl)-4-propyl-3-[[6-[2-(2H-tetrazol-5-yl)phenyl]pyridin-3-yl]methyl]imidazol-2-one by IUPAC nomenclature, provide its molecular formula.
user
C26H24BrN7O
assistant