You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [7-(4-methoxyphenyl)-3,4,6,7-tetrahydroimidazo[4,5-c]pyridin-5-yl]-(6-methyl-2,3-dihydro-1,4-dioxin-5-yl)methanone into its molecular formula.
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C19H21N3O4
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