You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-(1,1-dioxothiolan-3-yl)propyl]-2-(5-methyl-1,2-oxazol-3-yl)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H20N2O4S
assistant