You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule [1-[(12Z,15Z,18Z)-hexacosa-12,15,18-trienoyl]oxy-3-[(7Z,10Z,13Z)-hexadeca-7,10,13-trienoyl]oxypropan-2-yl] (Z)-hexacos-15-enoate .
user
C71H124O6
assistant