You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[carboxy-[3-[(13Z,16Z,19Z,22Z,25Z)-octacosa-13,16,19,22,25-pentaenoyl]oxy-2-[(29Z,32Z,35Z,38Z,41Z)-tetratetraconta-29,32,35,38,41-pentaenoyl]oxypropoxy]methoxy]ethyl-trimethylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C82H142NO8+
assistant