You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[4-(3-chlorophenyl)piperazin-1-yl]ethyl]tricyclo[3.3.1.03,7]nonane-3-carboxamide;dihydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H32Cl3N3O
assistant