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What is the molecular formula of the molecule identified by (3aR,6aS)-N-[(2,5-dimethylphenyl)methyl]-N-(4-methoxyphenyl)-5,5-dioxo-3a,4,6,6a-tetrahydrothieno[3,4-d][1,3]thiazol-2-amine ?
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C21H24N2O3S2
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