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Can you give the molecular formula of the molecule (9R,10S)-15-[[ethyl-[(2-methylpropan-2-yl)oxycarbonyl]amino]methyl]-6,9,10-trihydroxy-14-methyl-4-oxo-3,14-diazatetracyclo[9.7.0.02,7.013,17]octadeca-1(11),2(7),5,12,15,17-hexaene-5-carboxylic acid ?
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C26H31N3O8
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