You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2,6-dimethylmorpholin-4-yl)-N-[6-(1,3-thiazol-2-yl)-2-thiophen-2-ylpyrimidin-4-yl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H21N5O2S2
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