You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (13Z,16Z)-2-hydroxy-N-[(8E,12E)-1,3,4-trihydroxypentadeca-8,12-dien-2-yl]octacosa-13,16-dienamide by IUPAC nomenclature, provide its molecular formula.
user
C43H79NO5
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