You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [(2R)-1-[hydroxy-[2-hydroxy-3-[hydroxy-[(2R)-3-(14-methylhexadecanoyloxy)-2-(15-methylhexadecanoyloxy)propoxy]phosphoryl]oxypropoxy]phosphoryl]oxy-3-(11-methyldodecanoyloxy)propan-2-yl] 19-methylicosanoate by IUPAC nomenclature, provide its molecular formula.
user
C77H150O17P2
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