You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(1-aminoethyl)-N-[2-(2-methoxyethylamino)-2-oxoethyl]-N-methyl-1,3-thiazole-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H20N4O3S
assistant