You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-carboxy-3-[3-[(9E,11E,13E)-henicosa-9,11,13-trienoyl]oxy-2-[(E)-icos-11-enoyl]oxypropoxy]propyl]-trimethylazanium The above is the IUPAC name of a molecule. Write its molecular formula.
user
C51H92NO7+
assistant