You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2-bromo-5-methoxyphenyl)-N,N-dimethyl-1H-imidazo[4,5-b]pyridin-5-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H15BrN4O
assistant