You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl 3-[1-[[(5Z)-5-ethenyl-6-ethyl-2-methoxy-3-methylocta-5,7-dienyl]-methylamino]-2-methylpropan-2-yl]-4-hydroxybenzoate by IUPAC nomenclature, provide its molecular formula.
user
C28H43NO4
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