You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R)-1-[hydroxy-[2-hydroxy-3-[hydroxy-[(2R)-2-(10-methyldodecanoyloxy)-3-(17-methyloctadecanoyloxy)propoxy]phosphoryl]oxypropoxy]phosphoryl]oxy-3-(10-methylundecanoyloxy)propan-2-yl] 18-methylnonadecanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C73H142O17P2
assistant