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What is the molecular formula of the compound with this IUPAC name 2-[6-oxo-9-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,11-dihydrobenzo[b][1,4]benzodiazepin-3-yl]acetic acid ?
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C21H23BN2O5
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