You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as [1-[(7Z,9Z,11Z,13Z)-hexadeca-7,9,11,13-tetraenoyl]oxy-3-[(9Z,12Z)-pentadeca-9,12-dienoyl]oxypropan-2-yl] (9Z,11Z,13Z)-hexadeca-9,11,13-trienoate using the IUPAC nomenclature.
user
C50H78O6
assistant