You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-(4-chlorophenyl)-5-sulfanylidene-1H-1,2,4-triazol-3-yl]-N'-(4-fluorophenyl)acetohydrazide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H13ClFN5OS
assistant