You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (E)-3-[4-(diethylsulfamoyl)phenyl]-N-[(2,4-dimethylphenyl)methyl]-N-methylprop-2-enamide by IUPAC nomenclature, provide its molecular formula.
user
C23H30N2O3S
assistant