You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R)-1-[hydroxy-[(2R)-2-hydroxy-3-[hydroxy-[(2R)-2-(11-methyldodecanoyloxy)-3-tridecanoyloxypropoxy]phosphoryl]oxypropoxy]phosphoryl]oxy-3-(14-methylhexadecanoyloxy)propan-2-yl] 16-methylheptadecanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C70H136O17P2
assistant