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What is the molecular formula of the molecule (19S)-10-[[di(propan-2-yl)amino]methyl]-19-ethyl-19-hydroxy-17-oxa-3,13-diazapentacyclo[11.8.0.02,11.04,9.015,20]henicosa-1(21),2,4,6,8,10,15(20)-heptaene-14,18-dione ?
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C27H31N3O4
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