You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 2-[2-[(9Z,12Z)-octadeca-9,12-dienoyl]oxy-3-pentadecanoyloxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate ?
user
C43H79NO8
assistant