You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(Z)-3-[(4E,7Z)-hexadeca-4,7-dienoyl]oxy-2-[[(15Z,18Z)-tetracosa-15,18-dienoyl]amino]octadec-4-enyl] 2-(trimethylazaniumyl)ethyl phosphate into its molecular formula.
user
C63H117N2O7P
assistant