You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[6-(furan-2-yl)pyridazin-3-yl]oxyethyl]-2-[4-(4-methoxyphenyl)-6-oxopyrimidin-1-yl]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H21N5O5
assistant