You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(3-fluorophenyl)-N-(3,3,3-trifluoro-2-piperazin-1-ylpropyl)methanesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H19F4N3O2S
assistant