You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 3-[[4-[[(2S)-1-[4-(4-methylphenyl)phenyl]hexan-2-yl]amino]benzoyl]amino]propanoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C31H38N2O3
assistant