You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(5-bromo-2-methylphenyl)methyl]-5-pyridin-2-yl-1,3,4-thiadiazol-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H13BrN4S
assistant