You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (3aS,6aS)-1-[(2,5-dimethylphenyl)methyl]-3-(4-ethylphenyl)-5,5-dioxo-3a,4,6,6a-tetrahydrothieno[3,4-d]imidazol-2-one is given. What is its corresponding molecular formula?
user
C22H26N2O3S
assistant