You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-[2-[1-[2-hydroxy-3-(2-methylaziridin-1-yl)propoxy]propan-2-yloxy]ethoxy]propoxy]-3-(2-methylaziridin-1-yl)propan-2-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H40N2O6
assistant