You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 8-[2-[4-[4-(4-methoxyphenyl)butoxy]phenyl]ethenyl]-2-(2H-tetrazol-5-yl)chromen-4-one into its molecular formula.
user
C29H26N4O4
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