You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-chlorophenyl)sulfanyl-2,5-difluoro-N-[1-[4-fluoro-2-(4-methylsulfanylbutyl)phenyl]ethyl]aniline is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H25ClF3NS2
assistant