You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(7Z,10Z,13Z,16Z,19Z)-docosa-7,10,13,16,19-pentaenoyl]oxy-3-[(Z)-henicos-11-enoyl]oxypropyl] (Z)-tetracos-13-enoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C70H122O6
assistant