You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[carboxy-[2-[(4Z,7Z,10Z,13Z)-hexadeca-4,7,10,13-tetraenoyl]oxy-3-icosanoyloxypropoxy]methoxy]ethyl-trimethylazanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C46H82NO8+
assistant