You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[4-[(4-chlorophenyl)methyl]piperazin-1-yl]-3-methyl-1-oxobutan-2-yl]-2-methylbenzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H30ClN3O2
assistant