You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(9Z,11Z,13Z)-hexadeca-9,11,13-trienoyl]oxy-3-[(6Z,9Z,12Z)-pentadeca-6,9,12-trienoyl]oxypropyl] (9Z,11Z,13Z,15Z)-octadeca-9,11,13,15-tetraenoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H80O6
assistant