You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoyl]oxy-2-[(10Z,13Z,16Z)-tetracosa-10,13,16-trienoyl]oxypropyl] dotriacontanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C77H136O6
assistant