You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[3-[4-(5-methoxy-1H-indol-3-yl)piperidin-1-yl]-3-oxo-1-phenylpropyl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C30H31N3O3
assistant