You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
acetic acid;3-(2-aminoethoxy)-4-methyl-N-[(4-methyl-6-oxo-1H-pyrimidin-2-yl)methyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C18H24N4O5
assistant