You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[1-(methylcarbamoylamino)-1-oxopropan-2-yl] (E)-3-(4-butoxy-3-ethoxyphenyl)prop-2-enoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H28N2O6
assistant