You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[5-(2,4-difluorophenyl)-1,3-oxazol-2-yl]-N-[2-(2,3-dimethylanilino)-2-oxoethyl]-N-methylpropanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H23F2N3O3
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