You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (2R,3R,4S)-1,1-dimethyl-2-[[(Z)-octadec-9-enoxy]methyl]pyrrolidin-1-ium-3,4-diol;hydroxide is given. What is its corresponding molecular formula?
user
C25H51NO4
assistant