You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-(4-benzamidopiperidin-1-yl)-4-methyl-1-oxopentan-2-yl]-2,4-dichlorobenzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H29Cl2N3O3
assistant