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Under IUPAC nomenclature, a molecule named (3aS,6aS)-1-(2-amino-1,3-thiazole-4-carbonyl)-4-[(6-fluoro-1H-benzimidazol-2-yl)methyl]-3,3a,6,6a-tetrahydro-2H-pyrrolo[3,2-b]pyrrol-5-one is given. What is its corresponding molecular formula?
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C18H17FN6O2S
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