You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [4-(2,5-difluorophenyl)sulfonylpiperazin-1-yl]-(2-sulfanylidene-1H-pyridin-3-yl)methanone .
user
C16H15F2N3O3S2
assistant