You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[5-(dimethylsulfamoyl)-2-oxopyridin-1-yl]-N-[(3S)-1,1-dioxothiolan-3-yl]-N-phenylacetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H23N3O6S2
assistant