You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule N-[(2S)-1-[4-(2,5-difluorophenyl)sulfonylpiperazin-1-yl]-1-oxopropan-2-yl]-2-fluorobenzenesulfonamide ?
user
C19H20F3N3O5S2
assistant