You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1-hydroxy-2-methylpropan-2-yl)-N,3-dimethyl-2-oxo-1,3-benzoxazole-6-sulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H18N2O5S
assistant