You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-(2-methoxyethyl)-7-[4-(3-methylbutanoyl)piperazine-1-carbonyl]-2-phenylpyrazolo[4,3-c]pyridin-3-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H31N5O4
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