You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[5-chloro-4-[(3-methoxy-4-propoxyphenyl)methylamino]-6-oxopyridazin-1-yl]benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24ClN3O5
assistant