You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[carboxy-[2-[(7Z,10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z)-tetratriaconta-7,10,13,16,19,22,25,28,31-nonaenoyl]oxy-3-triacontanoyloxypropoxy]methoxy]ethyl-trimethylazanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C74H128NO8+
assistant