You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[[(Z)-3-[(17Z,20Z)-hexacosa-17,20-dienoyl]oxy-2-[[(15Z,18Z,21Z,24Z)-triaconta-15,18,21,24-tetraenoyl]amino]heptadec-4-enoxy]-hydroxyphosphoryl]oxyethyl-trimethylazanium into its molecular formula.
user
C78H144N2O7P+
assistant