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 (6Z,12E)-18-hydroxy-16-[2-[6-(methylamino)pyridin-2-yl]ethoxy]-3-oxabicyclo[12.4.0]octadeca-1(14),6,12,15,17-pentaene-2,8-dione;dihydrate is given. What is its corresponding molecular formula?
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C25H32N2O7
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