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 ethyl 2-[[26,27-bis(2-ethoxy-2-oxoethoxy)-28-[2-oxo-2-[2-(phenylcarbamoyl)benzimidazol-1-yl]ethoxy]-25-pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3(28),4,6,9(27),10,12,15,17,19(26),21,23-dodecaenyl]oxy]acetate is given. What is its corresponding molecular formula?
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C56H53N3O12
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