You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(E)-3-hydroxy-2-[[(7Z,10Z,13Z,16Z,19Z,22Z,25Z)-octacosa-7,10,13,16,19,22,25-heptaenoyl]amino]octacos-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate by IUPAC nomenclature, provide its molecular formula.
user
C61H109N2O6P
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