You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-fluorophenyl)-1-[1-(oxolan-3-yl)pyrazol-4-yl]sulfonylpiperazine;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H22ClFN4O3S
assistant