You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[methyl-[[methyl-[methyl-[4-[oxido-[2-(trimethylazaniumyl)ethoxy]phosphoryl]oxybutyl]silyl]oxy-[3-(2-methylprop-2-enoyloxy)propyl]silyl]oxymethyl]silyl]propyl 2-(trimethylazaniumyl)ethyl phosphate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H64N2O12P2Si3
assistant