You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[2,3-dihydroxypropoxy(hydroxy)phosphoryl]oxy-2-hydroxypropyl] (9Z,12Z)-octadeca-9,12-dienoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H45O9P
assistant