You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (5S)-2-(4-chloroanilino)-N-(2,4-dimethylphenyl)-4,7-dioxo-3,5,6,8-tetrahydropyrido[2,3-d]pyrimidine-5-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C22H20ClN5O3
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