You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-methylsulfanyl-6-oxo-4-[4-(thiadiazol-4-yl)phenyl]-1H-pyrimidine-5-carbonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H9N5OS2
assistant