You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 2-[[2-[1-(2,3-dimethylphenyl)imidazol-2-yl]sulfanylacetyl]amino]-2-phenylacetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H23N3O3S
assistant