You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 1-[2-[4-(difluoromethyl)-3,6-dimethylpyrazolo[3,4-b]pyridin-1-yl]acetyl]piperidine-4-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H24F2N4O3
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