You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 3-[(8,8-dimethyl-2-oxabicyclo[4.2.0]octan-7-yl)amino]-N-(2-hydroxyethyl)benzamide by IUPAC nomenclature, provide its molecular formula.
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C18H26N2O3
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