You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,3-bis(2-ethoxyethoxy)propane;1,3-bis(2-methoxyethoxy)propane;1-ethoxy-3-(2-ethoxyethoxy)propane;1-ethoxy-3-[2-[2-(3-ethoxypropoxy)ethoxy]ethoxy]propane;1-ethoxy-3-[3-(3-ethoxypropoxy)propoxy]propane;1-[2-(3-ethoxypropoxy)ethoxy]hexane;1-(2-methoxyethoxy)-3-[3-(2-methoxyethoxy)propoxy]propane;1-methoxy-3-(2-methoxyethoxy)propane;1-methoxy-3-[2-[2-(3-methoxypropoxy)ethoxy]ethoxy]propane;1-methoxy-3-[2-(3-methoxypropoxy)ethoxy]propane;1-methoxy-3-(3-methoxypropoxy)propane;1-methoxy-3-[3-(3-methoxypropoxy)propoxy]propane The above is the IUPAC name of a molecule. Write its molecular formula.
user
C129H282O47
assistant