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 2-[3-[(11Z,14Z)-henicosa-11,14-dienoyl]oxy-2-[(18Z,21Z,24Z,27Z)-triaconta-18,21,24,27-tetraenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate .
user
C61H107NO8
assistant