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What is the molecular formula of the molecule methyl (1R,9R)-10-(2,5-difluorophenyl)-9-methyl-11-oxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2(7),3,5-triene-4-carboxylate ?
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C19H16F2N2O4
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