You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[[3-[[3-[(11Z,14Z,17Z,20Z)-hexacosa-11,14,17,20-tetraenoyl]oxy-2-octadecanoyloxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropyl] (15Z,18Z,21Z,24Z)-triaconta-15,18,21,24-tetraenoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C83H148O16P2
assistant