You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-N-[4-[(2S)-2-(methoxymethyl)pyrrolidin-1-yl]-6-propylpyrimidin-2-yl]benzene-1,3-diamine into its molecular formula.
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C19H27N5O
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