You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-(4-fluoro-3-nitrophenyl)-2-[(5-oxo-4-propyl-1H-1,2,4-triazol-3-yl)sulfanyl]acetamide into molecular formula.
user
C13H14FN5O4S
assistant