You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-[(4Z,7Z,10Z,13Z)-icosa-4,7,10,13-tetraenoyl]oxy-3-octadecoxypropyl] 2-(trimethylazaniumyl)ethyl phosphate is the IUPAC name of a molecule. Please give its molecular formula.
user
C46H86NO7P
assistant