You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[1-hydroxy-3-(1H-indol-3-yl)propan-2-yl]-5-(2-phenylethynyl)-2-propoxybenzamide by IUPAC nomenclature, provide its molecular formula.
user
C29H28N2O3
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