You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[2-[2-[2-[2-[2-[2-[2,3-bis[(Z)-octadec-9-enoxy]propanoyl-octylamino]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]-2-oxoethyl]amino]ethyl 2-(2-methoxyethylamino)acetate by IUPAC nomenclature, provide its molecular formula.
user
C66H127N3O12
assistant