You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[4-[4-(2-methylpropyl)piperazin-1-yl]-3-spiro[5.5]undecan-3-ylphenyl]morpholine;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H48ClN3O
assistant