You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-oxo-2-(2,4,5-trimethylphenyl)ethyl] 1-[(3S)-1,1-dioxothiolan-3-yl]-6-oxo-4,5-dihydropyridazine-3-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H24N2O6S
assistant