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 4-[2-[(7E,10E,13E,16E,19E,22E)-pentacosa-7,10,13,16,19,22-hexaenoyl]oxy-3-tetradecanoyloxypropoxy]-2-(trimethylazaniumyl)butanoate .
user
C49H83NO7
assistant