You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(5-hydroxy-2-methyl-7-morpholin-4-yl-4-oxo-3H-chromen-2-yl)-N-phenylmethanesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H24N2O6S
assistant