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What is the molecular formula of the molecule N'-[2-[(1R,2R,6S,7R)-3,5-dioxo-4-azatricyclo[5.2.1.02,6]dec-8-en-4-yl]acetyl]-4,5,6,7-tetrahydro-1H-indazole-3-carbohydrazide ?
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C19H21N5O4
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