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-heptadecanoyloxy-3-[[(2S)-3-[[(2R)-2-hexadecanoyloxy-3-octanoyloxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropoxy]-hydroxyphosphoryl]oxypropan-2-yl] tetracosanoate .
user
C74H144O17P2
assistant