You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(3,3,3-trifluoro-2-piperazin-1-ylpropyl)-1-benzofuran-3-carboxamide;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H19ClF3N3O2
assistant