You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-[[2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxy-3-hydroxypropoxy]-hydroxyphosphoryl]oxy-3-[(Z)-tetradec-9-enoyl]oxypropan-2-yl] (6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C54H91O11P
assistant