You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-octadecanoyloxy-3-[(3Z,6Z,9Z,12Z,15Z)-octadeca-3,6,9,12,15-pentaenoxy]propyl] (7Z,10Z,13Z,16Z,19Z)-docosa-7,10,13,16,19-pentaenoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C61H100O5
assistant