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Translate the chemical IUPAC name ethyl 4,5-dimethyl-2-[[(5R,7S)-5-thiophen-2-yl-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbonyl]amino]thiophene-3-carboxylate into its molecular formula.
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C21H21F3N4O3S2
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