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system
Name the molecular formula for the molecule established as 9-chloro-N-(2,4-difluorophenyl)-3-ethyl-3-methyl-2,5-dioxo-1,4-dihydro-1,4-benzodiazepine-7-sulfonamide using the IUPAC nomenclature.
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C18H16ClF2N3O4S
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