You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[hydroxy-[2-hydroxy-3-[hydroxy-[3-[(5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoyl]oxy-2-[(11Z,14Z,17Z)-icosa-11,14,17-trienoyl]oxypropoxy]phosphoryl]oxypropoxy]phosphoryl]oxy-2-[(11Z,14Z,17Z)-icosa-11,14,17-trienoyl]oxypropyl] (10Z,13Z,16Z,19Z)-docosa-10,13,16,19-tetraenoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C91H148O17P2
assistant