You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(4-chlorophenyl)methyl]-2-methyl-N-[1-oxo-3-phenyl-1-(3-propan-2-yloxypropylamino)propan-2-yl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H35ClN2O3
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