You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-[2-[(E)-[1-(2,3-dimethylphenyl)-4,6-dioxo-2-sulfanylidene-1,3-diazinan-5-ylidene]methyl]phenoxy]propanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H20N2O5S
assistant