You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 6-[[2-[5-methoxy-3-(1H-pyrrolo[2,3-b]pyridin-2-yl)indol-1-yl]acetyl]amino]hexanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H28N4O4
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