You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [1-[2,3-dihydroxypropoxy(hydroxy)phosphoryl]oxy-3-undecoxypropan-2-yl] (Z)-hexadec-9-enoate by IUPAC nomenclature, provide its molecular formula.
user
C33H65O9P
assistant