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What is the molecular formula of the molecule 1-[(4aS,7aR)-1-[(1,3-dimethylpyrazol-4-yl)methyl]-6,6-dioxo-2,3,4a,5,7,7a-hexahydrothieno[3,4-b]pyrazin-4-yl]-2-methoxyethanone ?
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C15H24N4O4S
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