You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[6-[4-(2,6-dimethylpyrimidin-4-yl)morpholin-2-yl]pyridin-2-yl]-6-methylpyridin-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H24N6O
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