You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-acetamido-2-(methanesulfonamido)-N-[[3-(2-oxo-1,3-oxazolidin-3-yl)phenyl]methyl]benzamide by IUPAC nomenclature, provide its molecular formula.
user
C20H22N4O6S
assistant