You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-(5,6-dimethyl-4-oxo-2-sulfanylidene-1H-thieno[2,3-d]pyrimidin-3-yl)-2,2-dimethylpropanamide is given. What is its corresponding molecular formula?
user
C13H17N3O2S2
assistant