You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-(3,4-diethoxyphenyl)ethyl]-3-(2,5,7-trimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H31N5O3
assistant