You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name (2S,3S)-3-[4-[2-(hydroxymethyl)phenyl]piperazin-1-yl]-5-iodo-1,2,3,4-tetrahydronaphthalen-2-ol into its molecular formula.
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C21H25IN2O2
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