You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[(10Z,13Z,16Z)-docosa-10,13,16-trienoyl]oxy-2-[(8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-8,11,14,17,20,23-hexaenoyl]oxypropyl] (8Z,11Z,14Z,17Z,20Z,23Z)-hexacosa-8,11,14,17,20,23-hexaenoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C77H120O6
assistant