You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[4-[(2S)-2-hydroxy-3-[4-(1H-indol-3-yl)piperidin-1-yl]propoxy]phenyl]ethanone by IUPAC nomenclature, provide its molecular formula.
user
C24H28N2O3
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