You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [1-hydroxy-3-[(27Z,30Z)-octatriaconta-27,30-dienoyl]oxypropan-2-yl] (26Z,29Z,32Z)-tetraconta-26,29,32-trienoate by IUPAC nomenclature, provide its molecular formula.
user
C81H150O5
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