You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [(2R)-1-heptanoyloxy-3-[[(2R)-3-[[(2R)-2-hexadecanoyloxy-3-tetradecanoyloxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] octadecanoate into molecular formula.
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C64H121O17P2-3
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