You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-(6-amino-3-methyl-2,4-dioxo-1H-pyrimidin-5-yl)-2-[(1R)-1-chloro-4-phenylcyclohexa-2,4-dien-1-yl]acetamide is given. What is its corresponding molecular formula?
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C19H19ClN4O3
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