You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[[2-[(2-amino-3-hydroxybutanoyl)amino]-3-(1H-indol-3-yl)propanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid into its molecular formula.
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C24H28N4O6
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