You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[3-hexadecanoyloxy-2-[(10Z,13Z,16Z,19Z,22Z,25Z,28Z,31Z,34Z,37Z)-tetraconta-10,13,16,19,22,25,28,31,34,37-decaenoyl]oxypropoxy]-2-[2-(trimethylazaniumyl)ethoxy]acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C66H109NO8
assistant