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 3,4,5,6-tetrakis(dihydroxymethylidene)-2,7-diisocyanatoocta-1,7-diene-1,1,8,8-tetrol is given. What is its corresponding molecular formula?
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C14H12N2O14
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