You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-2-ethoxy-3-[[2-methoxy-4-[3-[3-(4-methylbenzoyl)pyrazolo[3,4-c]pyridin-1-yl]prop-1-enyl]phenyl]methoxy]propanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C30H31N3O6
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