You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(oxan-4-yloxy)-3-[1-(oxan-4-yl)pyrazol-4-yl]-1H-pyrrolo[3,4-c]pyridine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H24N4O3
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