You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(dimethylamino)-1-[4-[4-(2-ethyl-N-methylanilino)-1H-pyrrolo[2,3-b]pyridin-2-yl]-3,6-dihydro-2H-pyridin-1-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31N5O
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