You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-amino-2-[2-[5-amino-2-hydroxy-4-(2-methoxyethyl)phenyl]ethyl]-5-chloro-3-propylphenol is given. What is its corresponding molecular formula?
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C20H27ClN2O3
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