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 5-acetamido-2-[2-[4,5-dihydroxy-2-(hydroxymethyl)-6-[(E)-3-hydroxy-2-(tetratriacontanoylamino)tetracos-4-enoxy]oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid is given. What is its corresponding molecular formula?
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C81H152N2O21
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