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Under IUPAC nomenclature, a molecule named 2-[1-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-oxo-3-pyrrolidin-1-ylprop-1-en-2-yl]-6-phenyl-3H-thieno[2,3-d]pyrimidin-4-one is given. What is its corresponding molecular formula?
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C27H23N3O4S
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