You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[hydroxy-[(2R)-2-[(7E,10E,13E,16E)-icosa-7,10,13,16-tetraenoyl]oxy-3-tetradecanoyloxypropoxy]phosphoryl]oxyethyl-trimethylazanium by IUPAC nomenclature, provide its molecular formula.
user
C42H77NO8P+
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