You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[3-(3-cyclobutyl-4,5-dimethoxyphenyl)phenyl]methyl]-N-(4-methoxyphenyl)piperidin-4-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C31H38N2O3
assistant