You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 6-chloro-9-(3,5-dichlorophenyl)-3,4-dimethyl-8,10-dihydropyrano[2,3-f][1,3]benzoxazin-2-one into molecular formula.
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C19H14Cl3NO3
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