You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [3-[[3-[[3-[(10Z,13Z,16Z,19Z)-docosa-10,13,16,19-tetraenoyl]oxy-2-[(9Z,12Z)-hexadeca-9,12-dienoyl]oxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropoxy]-hydroxyphosphoryl]oxy-2-hydroxypropyl] (9Z,12Z,15Z,18Z,21Z)-tetracosa-9,12,15,18,21-pentaenoate into its molecular formula.
user
C71H118O16P2
assistant