You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[carboxy-[2-[(15Z,18Z,21Z,24Z,27Z,30Z,33Z)-hexatriaconta-15,18,21,24,27,30,33-heptaenoyl]oxy-3-nonatriacontanoyloxypropoxy]methoxy]ethyl-trimethylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C85H154NO8+
assistant