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-chloro-2-[[2-(4-methylphenyl)-1,3-benzoxazol-5-yl]iminomethyl]-6-nitrophenol is given. What is its corresponding molecular formula?
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C21H14ClN3O4
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