You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [2-pentadecanoyloxy-3-[(5Z,8Z,11Z)-tetradeca-5,8,11-trienoyl]oxypropyl] (4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoate by IUPAC nomenclature, provide its molecular formula.
user
C54H86O6
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