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Can you give the molecular formula of the molecule N-[[(1R,8R,9S)-11-(1-methylpyrazole-3-carbonyl)-6-oxo-7,11-diazatricyclo[7.3.1.02,7]trideca-2,4-dien-8-yl]methyl]butanamide ?
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C21H27N5O3
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