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What is the molecular formula of the molecule 3-[4-(1-amino-3,6-dihydro-2H-pyridin-4-yl)-1,2,3,6-tetrahydropyridin-5-yl]-5-(3,3-dimethylbut-1-ynyl)thiophene-2-carboxylic acid ?
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C21H27N3O2S
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