You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [1-carboxy-3-[2-[(E)-docos-11-enoyl]oxy-3-[(5E,8E,11E,14E,17E)-icosa-5,8,11,14,17-pentaenoyl]oxypropoxy]propyl]-trimethylazanium by IUPAC nomenclature, provide its molecular formula.
user
C52H90NO7+
assistant