You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[3-(2,3-dihydro-1-benzofuran-5-yl)-1,2,4-oxadiazol-5-yl]methyl]-2,3-dihydrothiophene 1,1-dioxide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H14N2O4S
assistant