You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 2-[2,3-bis[[(12Z,15Z,18Z,21Z)-tetracosa-12,15,18,21-tetraenoyl]oxy]propoxy-hydroxyphosphoryl]oxyethyl-trimethylazanium ?
user
C56H97NO8P+
assistant