You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [(2R)-1-[hydroxy-[(2S)-2-hydroxy-3-[hydroxy-[(2R)-3-octanoyloxy-2-pentadecanoyloxypropoxy]phosphoryl]oxypropoxy]phosphoryl]oxy-3-(12-methyltetradecanoyloxy)propan-2-yl] henicosanoate .
user
C68H132O17P2
assistant