You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-[(5-chloro-4-fluorothiophen-3-yl)carbamoylamino]-N-[2-(diethylamino)ethyl]-2-methoxybenzamide by IUPAC nomenclature, provide its molecular formula.
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C19H24ClFN4O3S
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